God is a Spirit. (John 4:24).
God prepared Himself a body when He overshadowed Mary and
she conceived.
"And the angel answered and said unto her, The Holy
Ghost shall come upon thee, and the power of the Highest shall overshadow thee:
therefore also that holy thing which shall be born of thee shall be called the
Son of God." - Luke 1:35 KJV
God came in His name of salvation - JESUS. (Acts 4:12, Acts
2:38).
"And she shall bring forth a son, and thou shalt call
his name JESUS: for he shall save his people from their sins." - Matthew
1:21 KJV
The Son of God is the flesh and blood body of God. (Luke
1:35).
It was necessary that God Himself put on flesh and blood to
save humanity from sin - sin required blood without sin to be shed for
remission of sins, and only God is without sin. (Hebrews 10:4).
"And almost all things are by the law purged with
blood; and without shedding of blood is no remission." - Hebrews 9:22 KJV
(Leviticus 17:11).
"For this is my blood of the new testament, which is
shed for many for the remission of sins." - Matthew 26:28 KJV
"Who did no sin, neither was guile found in his
mouth:" - 1 Peter 2:22 KJV
"And from Miletus he [Paul] sent to Ephesus, and called
the elders of the church...Take heed therefore unto yourselves, and to all the
flock, over the which the Holy Ghost hath made you overseers, to feed the
church of God, which he hath purchased with his own blood." - Acts 20:17,
28 KJV
"Hereby perceive we the love of God, because he laid
down his life for us" - 1 John 3:16a KJV