2 Corinthians 11:11

why so? is it because I love you not? far otherwise, God knows.

2 Corinthians 12:15

I shall be glad to sacrifice myself and all I have for your service, even tho' it should happen that the more I love you, the less I should be beloved.

2 Corinthians 12:2-3

I knew a christian who above fourteen years ago, was snatch'd up even to the third heaven, whether in the body, I cannot tell; or whether out of the body, I cannot tell: God knows.

John 2:24-25

but Jesus did not trust his person with them, because he knew them all.

John 21:17

Jesus said to him the third time, Simon son of Jonas, do you love me? Peter was grieved at his asking him the third time, "do you love me?" and he said to him, Lord, you know all things; you know that I love you. Jesus said to him, feed my sheep.

Acts 15:8

God who knows their hearts has granted them a testimonial, by giving them the holy spirit, even as he did to us:

2 Corinthians 6:11-12

O Corinthians, my heart is so full, my tongue cannot be silent:

2 Corinthians 7:3

I speak not this to your reproach: for I have already assured you, that I am so heartily well affected to you, I could live and die with you.

2 Corinthians 11:10

I solemnly protest, no man shall hinder me of this applause, in the regions of Achaia.

2 Corinthians 11:31

the ever-blessed God, and father of our Lord Jesus Christ, knows that I speak truth.

Hebrews 4:13

so that there is not a creature that is concealed from his view: but all is naked and open to the eyes of him of whom we speak. Having then so great a high priest,

Revelation 2:23

I will strike her children dead; and all the churches shall know that I am he who searcheth the reins and the heart: and I will give to every one of you according to your works.

Treasury of Scripture Knowledge

Summary

Wherefore? because I love you not? God knoweth.

Bible References

Because

2 Corinthians 6:11
O Corinthians, my heart is so full, my tongue cannot be silent:
2 Corinthians 7:3
I speak not this to your reproach: for I have already assured you, that I am so heartily well affected to you, I could live and die with you.
2 Corinthians 12:15
I shall be glad to sacrifice myself and all I have for your service, even tho' it should happen that the more I love you, the less I should be beloved.