'Clean Heart' in the Bible

Make a clean heart in me, O God; give me a right spirit again.

A false tongue has hate for those who have clean hearts, and a smooth mouth is a cause of falling.

In a clean heart, in knowledge, in long waiting, in being kind, in the Holy Spirit, in true love,

For our witness does not come from error or from an unclean heart or from deceit:

But the effect of the order is love coming from a clean heart, and a knowledge of what is right, and true faith:

To the older women as to mothers, to the younger as to sisters, with a clean heart.

But keep yourself from those desires of the flesh which are strong when the body is young, and go after righteousness, faith, love, peace, with those whose prayers go up to the Lord from a clean heart.