But God's firm foundation stands, bearing this seal: "The Lord knows those who are his," and, "Let everyone who names the name of the Lord depart from iniquity."
2 Timothy 2:19
See: Notes on 2 Timothy by Thomas L. Constable
Publisher: Constable's Bible Study Notes
See Sermon: Single-mindedness, Integrity, and Diligence Through Grace: 2 Timothy 2:1-7, Part 4 by John Piper
Publisher: Bethlehem Baptist Church
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