Great question. I'll try to break it down for our readers.
1. Where does the concept of the Triune God appear biblically? There are several passages of Scripture that specifically mention the three Persons of the Trinity, namely: God the Father, God the Son (Jesus Christ) and God the Holy Spirit.
- Matthew 28: 18-19 (click on this link and find the other verses; or you can look them up in your Bible)
- 1 Cor. 12:4-6
- 2 Cor. 13:14
- Eph. 4:4-7
- 1 Peter 1:2
- Jude 20-21
What you'll discover is that, in each of these verses, all three Persons of the Trinity are explicitly mentioned.
2. There are other names in the Bible used to refer to God, such as "Lamb of God," "Love," "Sanctifier," etc. How can we be sure that God has expressed himself specifically in these three terms?
These are attributes and descriptions for God; they are not other people in the Trinity. Let me illustrate with an example. While all Persons in the Trinity can be described as "love" (John 3:16; Eph. 5:25; Rom. 15:30), "Love" is not another Person in the Trinity. It is a description of what each Person of the Trinity is like.
For additional information, listen/read this sermon.
[Answered by Pastor HM]
