Acts 16:25

But at midnight Paul and Silas having prayed, sung an hymn to God: and the prisoners heard them.

Luke 6:12

And in those days he went out into a mountain to pray, and continued all night in the prayer of God.

John 14:21

He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me, shall be loved by my Father, and I will love him, and will manifest myself to him.

John 15:10

Abide ye in my love. If ye keep my commandments, ye shall abide in my love, even as I have kept my Father's commandments, and abide in his love.

Treasury of Scripture Knowledge

Summary

I have remembered thy name, O LORD, in the night, and have kept thy law.

Bible References

Night

Luke 6:12
And in those days he went out into a mountain to pray, and continued all night in the prayer of God.
Acts 16:25
But at midnight Paul and Silas having prayed, sung an hymn to God: and the prisoners heard them.

Kept

John 14:21
He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me, shall be loved by my Father, and I will love him, and will manifest myself to him.
John 15:10
Abide ye in my love. If ye keep my commandments, ye shall abide in my love, even as I have kept my Father's commandments, and abide in his love.