2 Corinthians 12:7

It was for this reason, and to prevent my thinking too highly of myself, that a thorn was sent to pierce my flesh--an instrument of Satan to discipline me--so that I should not think too highly of myself.

1 Peter 5:5

Again, you younger men should show deference to the older. And all of you should put on the badge of humility in mutual service, for 'God is opposed to the proud, but gives his help to the humble.'

Treasury of Scripture Knowledge

Summary

That his heart be not lifted up above his brethren, and that he turn not aside from the commandment, to the right hand, or to the left: to the end that he may prolong his days in his kingdom, he, and his children, in the midst of Israel.

Bible References

His heart

2 Corinthians 12:7
It was for this reason, and to prevent my thinking too highly of myself, that a thorn was sent to pierce my flesh--an instrument of Satan to discipline me--so that I should not think too highly of myself.
1 Peter 5:5
Again, you younger men should show deference to the older. And all of you should put on the badge of humility in mutual service, for 'God is opposed to the proud, but gives his help to the humble.'