Jesus Christ existed eternally as God before coming to earth as a man.
For a child will be born to us, a son will be given to us; And the government will rest on His shoulders; And His name will be called Wonderful Counselor, Mighty God, Eternal Father, Prince of Peace (Isa 9:6; cf. Mic 5:2; John 3:31).
Being God, Jesus created and sustains all life.
In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things came into being through Him, and apart from Him nothing came into being that has come into being (John 1:1-3; cf. John 10:18; Col 1:16-17).
Jesus is self-existent, immuntable, omnipotent, and omniscient.
“Now we know that You know all things, and have no need for anyone to question You; by this we believe that You came from God.” (John 16:30; cf. Matt 18:20; 28:18, 20; John 5:21, 26; Col 2:3; Heb. 2:8; 13:8)
Jesus Christ was conceived by the Holy Spirit and born of a virgin.
Now the birth of Jesus Christ was as follows: when His mother Mary had been betrothed to Joseph, before they came together she was found to be with child by the Holy Spirit (Matt 1:18; cf. Isa 7:14; Matt 1:24-25; Luke 1:35; 3:23).
Jesus, fulfilling biblical prophecy, was born in Bethlehem of Judah.
Now after Jesus was born in Bethlehem of Judea in the days of Herod the king, magi from the east arrived in Jerusalem, saying, “Where is He who has been born King of the Jews? For we saw His star in the east and have come to worship Him” (Matt 2:1-2; cf. Gen 49:9-10; 1 Sam 16:1; Matt 1:6; 15:22; 21:9; Mark 10:47; Heb 7:14; Rev 5:5)
Jesus was fully God and fully man, accepting the worship of other men during His stay on earth.
And behold, Jesus met them and greeted them. And they came up and took hold of His feet and worshiped Him (Matt 28:9; cf. Matt. 2:2,11; 14:33; John 9:35-38; Heb. 1:6).
As God, Jesus is qualified to offer complete atonement for the sins of men.
Being found in appearance as a man, He humbled Himself by becoming obedient to the point of death, even death on a cross (Phil 2:8; cf. Gal 6:14).