Luke 22:41

And He was separated from them about a stone's cast; and putting down His knees, continued to pray,

Acts 7:60

And putting down his knees, he cried with a loud voice, Lord, do not impute this sin to them. And saying this, he fell asleep.

Acts 9:40

And Peter having put them all out, and putting down his knees, prayed; and having turned toward the body, said, Tabitha, arise. And she opened her eyes: and seeing Peter sat up.

Acts 20:36

And having said these things, putting down his knees along with them all, he prayed.

Ephesians 1:3

Blessed is the God and Father of our Lord Jesus Christ, the one having blessed us with all spiritual blessing in the heavenlies in Christ:

Ephesians 1:16-19

I do not cease giving thanks for you making mention of you in my prayers;

Philippians 2:10

that at the name of Jesus every knee must bow, of things in heaven and things upon the earth and things beneath the earth,

Treasury of Scripture Knowledge

Summary

For this cause I bow my knees unto the Father of our Lord Jesus Christ,

The father

Bible References

I

Ephesians 1:16
I do not cease giving thanks for you making mention of you in my prayers;
Luke 22:41
And He was separated from them about a stone's cast; and putting down His knees, continued to pray,
Acts 7:60
And putting down his knees, he cried with a loud voice, Lord, do not impute this sin to them. And saying this, he fell asleep.
Acts 9:40
And Peter having put them all out, and putting down his knees, prayed; and having turned toward the body, said, Tabitha, arise. And she opened her eyes: and seeing Peter sat up.
Acts 20:36
And having said these things, putting down his knees along with them all, he prayed.

The father

Ephesians 1:3
Blessed is the God and Father of our Lord Jesus Christ, the one having blessed us with all spiritual blessing in the heavenlies in Christ: