Hebrews 1:5 says, “For unto which of the angels said he at any time, Thou art my Son, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son?”.
This was the Father’s announcement of His son. Jesus, The Word, came to the Earth and was made a little lower than the angels to take back from the devil what belongs to God. And in doing this, He secured our salvation and brought many sons to glory.