Welcome to Free Online Email Bible Lessons


Welcome to our Mailbox Bible Study Course. We trust you will enjoy these lessons as much as we did composing them. We are glad to be able to serve the Lord and you in this way. Many are being saved and helped through these simple Bible lessons. We suggest that you try to do one lesson each week; this will keep your interest in them active. This particular course contains six lessons on Doctine of the Trinity Bible Study. Read through this lesson carefully and complete the answers to the lesson by clicking on this word here "TEST IN MICROSOFT WORD FORMAT" and then save it to your computer. Once you have answered all the questions in the test, attach the test questions or copy and paste them into an email addressed to email.bible.lessons@gmail.com with your name and email address and send it to us. We will then evaluate and return any corrections to you with your next lesson. On completion of the full course you will receive a beautifully presented certificate. Should you have difficulty opening these files or sending the email please let us know by return email. We suggest that you print these lessons and put them in a binder for future studies.

May God richly bless you as you proceed.
Your Instructor
Harold Smith

All Courses are copyright and may not be used as Courses without permission.


He that dwelleth in the secret place of the Most High shall abide under the shadow of the Almighty.

“Because he hath set his love upon me, therefore will I deliver him: I will set him on high, because he hath known my name” (Ps.91: 1, 14).


“God hath in these last days spoken unto us by His Son, whom He hath appointed heir of all things, by whom also He made the worlds: who being the brightness of His Glory, and the express image of His Person, and upholding all things by the word of His power, when He had by Himself purged our sins, sat down on the right hand of the Majesty on high” (Heb. 1:1-3).

Accordingly there is “The Majesty” on high, and seated on the right hand of “The Majesty” is “His Son,” “by whom” God made the worlds, who is “the brightness” of God’s glory and “the express image of His person,” and who upholds “all things by the word of His power.” The Son made the worlds as the executive of the Godhead and then “by Himself” He purged our sins, and sat down on the right hand of the Majesty on high.


The Majesty on High has said from Heaven of the Son, “I will be to Him a Father, and He shall be to Me a Son” (Heb. 1:5). Then the Majesty, the Father, says to the Son, “Thy throne, 0 God, is for ever and ever, a sceptre of righteousness is the sceptre of Thy kingdom. Thou hast loved righteousness, and hated iniquity, therefore God, even Thy God (that is the Majesty, God the Father, the Father of Glory) hath anointed thee with the oil of gladness above thy fellows” (Heb. 1:8-9).

God the Son then is God, but He has “fellows”. He fellowships with those who are of another order, designated “Heirs of salvation” (Heb. 1:14).

The Son: the brightness and the express image of the person of the Majesty, always upholding and maintaining all that He had created and made, purged our sins by Himself, and we became “heirs of salvation.”

We, who have had our sins purged by Himself are the heirs of salvation, who are His fellows He fellowships with, though He be very God, holding the sceptre and seated upon the throne of His Kingdom. He has been anointed with the oil of gladness above His fellows, but they have the oil of gladness too. Through Him the Father anoints them also, in measure, because they are His.


Our admission into the holy fellowship of the Son is by baptism with or in the Holy Spirit. Before His ascension the Lord expressly told His disciples that they would be baptized with the Holy Spirit (Acts 1:5).


Because of this, the Lord also directed that those to be made disciples should be baptized (by immersion in water) “in the Name of the Father and of the Son and of the Holy Spirit” (Matt. 28: l9).
Water baptism is an ordeal which expresses or recognizes the bond or union of the Spirit into which all believers in Christ have already come. “For by one Spirit are we all baptized into one body and have all been made to drink into one Spirit” (1 Cor. 12: 13).  Accordingly, “There is one body, and one Spirit, even as ye are called in one hope of your calling: one Lord, one faith, one baptism, one God and Father of all, who is above all, and through all, and in you all” (Eph. 4:4-6).


The Name (singular), into which we are baptized is a plurality, for we are baptized into the Name of the Father and of the Son and of the Holy Spirit.

While the Holy Spirit is the Unifier or the One Spirit of the One Body in which we are members, our special identification is with the Son, and the Father is pleased to refer to us in a special sense as the “fellows” of the Son. And by water baptism we become completely identified with the Son in His death, burial and resurrection. He is the One Lord of the One Faith.

Dear fellow fellows of the Son, shall we together consider the fellowship that exists between the Father, the Son and the Holy Spirit, the fellowship to which we are called. “There are three that bear witness in Heaven, the Father, the Word, and the Holy Spirit: and these three are one” (1 John 5:7). They are one in the unity of their witness of love to one another and to the centrality of the Truth that for us eternal life is in God’s Son, the Word (1 John 5:11). One: also in the glorious fullness of the Godhead.

It is proposed to consider in some detail the position and work of the Three Persons of the Godhead as revealed in Scripture, relative to some of the major subjects or realms of divine activity. It is intended to show briefly the essentials of the foundation truths of the faith as they relate to the Persons of the Godhead.


That each person of the Holy Trinity acts in a way characteristic and peculiar to Himself and yet that they act with complete harmony and unity together as One, is illustrated by the Lord’s three parables in Luke 15.

In this Chapter the fact that the Godhead “together’ sought the lost of the world is revealed in three telling word pictures. The first depicts God the Son coming and seeking for the lost sheep, laying it on His shoulder and bringing it home rejoicing. The sheep, lost in its folly, is sought and found by the Son. It was rightly His, but became lost, so He found it and brought it back to Himself. In the parable it is a Man who loses, seeks and finds the sheep. God the Son is in Scripturally-correct character here as the Man, Christ Jesus, who came to redeem His own.

This parable is in juxtaposition with another which gives the cameo picture of the background of redemption in which the Holy Spirit is at work as the Woman who lost a silver piece. The Holy Spirit is in Scripturally-correct character, lighting a candle, sweeping and searching diligently, and then also rejoicing when the silver of redemption is found. The lost piece depicts the helplessness of the lost till the Holy Spirit illumines, and diligently seeks and finds.

And what of God the Father? Of course, the third and next parable is the best known of all parables, generally called the parable of the prodigal son. The Father’s wayward son, who willfully took the wrong course and became lost, eventually returns humbled and repentant. But the point of this parable is to reveal God the Father in His Scripturally-correct character, for His Father’s heart of love is revealed. He saw the prodigal returning when he was still “a great way off” and “He arose,” “and had compassion, and ran, and fell on his neck and kissed him.” The prodigal confessed, “I am no more worthy to be called thy son,” but the Father said, “Bring forth the best robe, and put it on him; and put a ring on his hand, and shoes on his feet and bring hither the fatted calf, and kill it; and let us eat and be merry: For this my son was dead, and is alive again; he was lost, and is found” (Luke 15:21-24).

So it is that God the Son goes forth as the Man to redeem and carry back on His shoulders those lost in their folly. The Holy Spirit illumines the tokens of redemption, and seeks and finds those who are hopelessly lost. And God the Father, yearning for those lost in their willfulness, rises and hastens to embrace the repentant returning prodigal and gives him undeserved honor and joy and sonship.


God the Father is first. Revelation reveals the invisible Father who is a spirit, to be holding a position at the Headship of the Godhead, agreeing in every way with the First Cause of nature and of the Universe.

The number One is the great indivisible unit of every kind of thought and reason, and thus the Father is unchanging, indivisible, always the same. He is the source of all things and the Provider, the “Father of lights with whom is no variableness, neither shadow that is cast by turning,” from whom comes “every good and every perfect gift” (James 1:17).

In the Trinity of the Godhead, the Father is first and He is a spirit. So also, in the triune nature of man, the spirit of man is first. “God is a spirit” and they that worship Him must worship “in spirit and truth.” “The Father seeketh such to worship Him” (John 4:23-24).

In the widest sense, the Father is the Father of the whole universe. Paul says the Greeks were right whey they said through one of their poets, “For we are also His offspring” (Acts 17:28). In particular, He is “The Father of Spirits” (Heb. 12:9). Within the trinity itself He is “the Father of our Lord Jesus Christ” (Rom. 15:6). He is also spoken of as “The God of our Lord Jesus Christ, the Father of glory” (Eph. 1:17).


Mark an X for your answers to True or False
1.   The Son created the world. T__F___            
2.   The Son is not as much God as the Father. T__ F___
3.   Baptism in the Spirit is the same as in water. T__ F__
4.   The Father’s role in the Godhead is the headship. T__ F___
5.   The prodigal son was lost to the father. T___ F___

Please fill in the blanks with CAPITAL LETTERS

6. _______are _____that bear ______in heaven.
7.  For __ one ______ are we ___   ______into one body.
8.   Thou ____loved ________and ______   ________.
9.   He is the _____   _____ of the _____faith
10. I ____no more _______to be ______thy son.



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Created by Harold Smith
Updated May 2013 by Shelly Allen