There is one God and He eternally exists in three persons. This is one of the most difficult characteristics of God to understand. Even though it is a difficult characteristic or doctrine, it is a hill to be defended even to the death. This is the doctrine known, in Christian circles, as The Trinity, or The Godhead.
The other day while listening to a sermon I was reminded and affirmed of this doctrine and truth about God. In all the gospels (Matthew, Mark, Luke and John) there exists a perfect depiction of The Trinity in action. The most descriptive, I believe, is found in Matthew chapter 3. The context of the passage is that Jesus is being baptised by John the Baptist and after He comes out of the water The Godhead is evident. Here is what scripture says in Matthew 3:16-17 (ESV).
16 And when Jesus was baptized, immediately he went up from the water, and behold, the heavens were opened to him, and he saw the Spirit of God descending like a dove and coming to rest on him; 17 and behold, a voice from heaven said, This is my beloved Son, with whom I am well pleased.
This is such a powerful passage in scripture. God the Son is baptized, God the Spirit descends on the Son, and God the Father affirms His Son. There are other passages in the Bible where this One God in three persons is evident. But this one continues to amaze me. This is where Jesus begins His earthly ministry and where He is made known to those who were witnesses. Would you have followed this God-man? Would you have been His disciple? How many followed Him after this is not known because the very next verse indicates that He was led up by the Spirit into the wilderness to be tempted by Satan. It is an awesome and wonderful thing when scripture continues to affirm our beliefs. It is a far better thing when we base our beliefs on Holy Scripture.