1. O Sunday School, on the Lord’s day,
O how I love Thee well,
I am happy, it makes me glad
To rejoice at Thy birth.

2. O Sunday School, on the Lord’s day,
Thy friendship suits me well,
Both young and will sing Thy song,
We long for Sunday School.

3. O Sunday School, on the Lord’s day,
Christ was Thy first teacher,
The Holy Spirit, great teacher,
Does manifest in thee.

4. O Sunday School, on the Lord’s day,
This testimony is sure,
That God, the Father Almighty,
Poured His blessings

5. O Sunday School, on the Lord’s day,
Though the sun be so bright,
Or if the clouds be black with rain,
I’ll be in Sunday School.

6. O Sunday School, on the Lord’s day,
I rejoice to see Thee,
Will thou pass over me today?
Without my being blest?


Today’s devotional: Open Heaven 18 September 2022

Powerful Declarations: Powerful Declarations For Today 18 September 2022

Today’s Prayer Points: Prayer Points For Open Heavens 18 September 2022

Teens Devotional: Open Heavens For Teens 18 September 2022



16. And Jesus, when he was baptized, went up straightway out of the water: and, lo, the heavens were opened unto him, and he saw the Spirit of God descending like a dove, and lighting upon him.

17. And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.

MEMORY VERSE: “For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one.” 1John 5:7 (NKJV).

INTRODUCTION: The doctrine of the 3-in-1 God otherwise known as Trinity is foundational to the Christian faith. It is the revelation of who our Almighty God actually is. God is an infinite Being, existing eternally as three co-equal and infinitely distinct Persons also called the Godhead: God the Father, God the Son, and the Holy Spirit. The origin of the doctrine of the Trinity is the Bible, although the word Trinity is not used in the Bible. The word ‘Trinity’ was coined by one of the early Church fathers, by the name ‘Tertullian.’ This doctrine is called ‘Trinitarianism’ and its adherents are called ‘Trinitarians.’ The focus of this study is to demystify the concept of the Trinity by providing the biblical basis for it with further clarifications.


The Old Testament provides glimpses of the Trinity. For example, the Hebrew word for God-“Elohiym” – is actually a plural form of the word ‘El’: hence, in Genesis 1:26, God says (in the plural) “Let us make man in our image.” When God created the heavens and the earth, Jesus was the instrument of God’s creation (Jn.1:1-3; Col.1:15-16), in the company of the Holy Spirit who hovered over the waters (Gen.1:2). Gen. 11:7, “Go to, let us go down…..,” also provides us with the evidence of the three-in-oneness of God.

The Torah (the first five books of the Old Testament, also called the Law or the Pentateuch) hinted at the idea of God existing in three Persons and predicted His coming in the flesh (Gen.49:10) to be born in Bethlehem (Mic.5:2). He was not only God’s Son (Isa.9:6) but a Messiah who would be God in the flesh (Zech.2:10-11). From the very beginning of the church in the New Testament, Christians understood the mystery of the Trinity.

For example, John the beloved knew the Son was the Creator (Jn.1:1-2), the “I Am” of the Old Testament (Jn.8:58; Ex. 3:14), equal to the Father (Jn.10:30; 14:9), and the Judge of all the earth (Jn. 5:22), who is to be worshipped as only God is allowed to be (Matt.14:33). Also, the first Christians knew the Holy Spirit was a separate Person (Jn.14:26) who intercedes for us with God (Rom. 8:26-27), proving He is a distinct Person from God the Father. The early believers knew that the Father and the Son sent the third Person of the Trinity, the Holy Spirit-“another Comforter”-to live in our hearts (Jn. 14:16-17, 26; 16:7).

New Testament writers mention all three Persons of the Trinity together numerous times. For instance:
1. At Jesus’ baptism-Matt.3:13-17 (voice of the Father, Son baptized, Spirit descending like a dove).

2. At Salvation- 1Peter 1:2 (chosen by the Father, sanctified by the Spirit, sprinkled with the blood of Jesus).

3. At Sanctification-2Cor.13:14 (grace of the Lord Jesus, love of God, fellowship of the Holy Spirit).

4. At Christians’ Baptism-Matt.28:19 (baptised in one name, yet three Persons-Father, Son, and Holy Spirit).

5. For a witness – 1Jn 5:7- For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one.

CLASS ACTIVITY 1: Why do you belief in the Trinity?

As Christians, we do not believe in three Gods, which is a heresy called ‘Tritheism.’ We do not believe that the Father, Son, and the Holy Spirit are three “forms” of God-like steam, water, and ice: that is the heresy called ‘Modalism.’ The egg is comprised of three parts: the yellowish part, the whitish part and the shell. Despite the three substances, the egg is not three but one. The doctrine of the Trinity holds that God is ‘One Being’ but ‘three Persons.’ The ‘three persons’ define who God is (Father, Son, and Holy Spirit) while the ‘one Being’ defines what God is (Infinite, Omnipresent, Omniscient, etc.). .

God has ‘one nature,’ but ‘three centres of consciousness.’ This means that the Father is God (Gal.1:1), the Son is God (Jn.20:28) and the Holy Spirit is God (Acts 5:3-4). They are not three gods but only one God (Deut.6:4). The Father is not the Son, the Son is not the Spirit, and the Spirit is not the Father. They are together: co-equal, co-eternal, having precisely the same nature and attributes (Almighty, unchangeable, infinitely powerful, wise, just, holy, etc.) and worthy of precisely the same worship, confidence, and obedience.

CLASS ACTIVITY 2: What is your view of the Trinity?

CONCLUSION: The doctrine of the ‘3-in-1’ God is Christianity’s most unique, defining, and awesome mystery.

1. What are the biblical bases of the trinity?
2. Explain the concept of the trinity.

FURTHER READING: SUN: Mk.12:30. MON: Tit.1:3. TUE: Phil.2:11. WED: Mk.16:15. THUR: Eph.1:4. FRI: Rom.1:4. SAT: Acts 8:37.

ASSIGNMENT: Students should mention five heretic beliefs/doctrines they have heard on the Trinity.

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