The Trinity is the teaching that there is only one God. This one God exists as three persons: The Father, the Son, and the Holy Spirit. They are not three gods, but one God. Each is a separate person, yet each is, in essence, divine in nature. Think of this analogy. Time consists of three aspects, yet there are not three "times," but only one. The past is not the present and the present is not the future. While each is separate, each shares the same nature or essence. In a similar way, the trinity is three separate persons who share the same nature.
The Bible says that Jesus, the second person of the Trinity, is God in the flesh, "In the beginning was the Word, and the Word was with God, and the Word was God...and the word became flesh and dwelt among us" (John 1:1,14), and, "For in Him all the fullness of Deity dwells in bodily form" (Col. 2:9). Jesus, therefore, has two natures. He is both God and man.
If Jesus is not the Creator, why does John 1:3 say of the Word that "All things came into existence through him, and apart from him not even one thing came into existence.?" Vs. 10: "...the world came into existence through him..."
As a man, Jesus had limitations.He grew in wisdom (Luke 2:52) Nor did he know the day or hour of his return (Matt. 24:36)He was tempted (Matt. 4:1). He prayed to the Father (John 17:1). He died (Rom. 5:8)
As God, Jesus knew all things (John 21:17). He was sinless (1 Pet. 2:22; Heb. 4:15). He is prayed to (Acts 7:59; 1 Cor. 1:2). He gives eternal life (John 20:28)
Phil. 2:5-8 best explains the seeming dichotomy between the Divine and human Jesus: "Have among yourselves the same attitude that is also yours in Christ Jesus, Who, though he was in the form of God, did not regard equality with God something to be grasped. Rather, he emptied himself, taking the form of a slave, coming in human likeness; and found human in appearance, he humbled himself, becoming obedient to death, even death on a cross."