Is the Baptism of Jesus Evidence for the Trinity?

In describing the baptism of Jesus, Matthew wrote, “When He had been baptized, Jesus came up immediately from the water; and behold, the heavens were opened to Him, and He saw the Spirit of God descending like a dove and alighting upon Him. And suddenly a voice came from heaven, saying, 'This is My beloved Son, in whom I am well pleased'" (Matthew 3:16-17, NKJV). Some have pointed to this passage and the other Gospel accounts of the baptism of Jesus as proof that the Godhead is comprised...