1 Thessalonians 3:13
To the end he may establish your hearts blameless in holiness before God, even our Father, at the coming of our Lord Jesus Christ with all his saints.
Torrey's Topical Textbook—AKJV

2 Thessalonians 2:17
Comfort your hearts, and establish you in every good word and work.
Torrey's Topical Textbook—AKJV