Because Jesus was born a human being, He as God in the flesh was sent to fulfill the Law as a man, not sinning once. He fulfilled the ceremonial laws of the Jews. He then took all mankind’s sin upon Himself, making Him guilty rather than those who put their faith in Him. He provided a way of Salvation from punishment in Hell and provided eternal life in the presence of God the Father, God the Son and God the Holy Spirit!
God the Father sent His Son Jesus at the precise time when the message of the Savior could impact the World with the greatest message the World could ever hear and know.