'Father' in the Bible

Grace shall be with you, mercy, peace from God the Father, and from the Lord Jesus Christ, the Son of the Father, in truth and love.

I rejoiced greatly that I have found of thy children walking in truth, as we have received commandment from the Father.

Whosoever goes forward and abides not in the doctrine of the Christ has not God. He that abides in the doctrine, he has both the Father and the Son.