2 Corinthians 12:14
Behold, the third time I am ready to come to you; and I will not be burdensome to you: for I seek not your's but you: for the children ought not to lay up for the parents, but the parents for the children.
2 Corinthians 13:3
Since ye seek a proof of Christ speaking in me, which to you-ward is not weak, but is mighty in you.