“Father” is probably the most common term we use in prayer, and rightly so, because that is how Jesus addressed His prayers, using the phrase more than 70 different times.
The only prayer Jesus ever prayed without using the name, "Father", was when He was on the Cross and cried out, “My God, my God, why have you forsaken me?”
Think of it! Only in sin-bearing was Jesus separated from the Father so that you and I could be saved!
Remember that God’s nature is like a daddy, but His name is holy. Our open access to God that leads to a close relationship with Him should not destroy our esteem for Him. He is not the “big guy in the sky” or “our buddy.”
He is the holy and awesome God of Israel, before whom we should tremble like Isaiah did in Isaiah 6.