Psalm 108:1 repeats this verse almost verbatim, showing the same declaration of a steadfast heart and intent to sing praise.

Psalm 108:2 continues the call to awaken instruments, directly extending the praise begun in verse 7.

In Psalm 103:1, the psalmist calls his soul to bless the Lord — a parallel inner resolve to praise, like the steadfast heart in Psalm 57:7.

Psalm 112:7 also speaks of a steadfast heart, but in the context of trusting God amid bad news, not praise.

In 2 Chronicles 12:14, Rehoboam did not set his heart to seek the Lord — contrasting the steadfast heart devoted to God in Psalm 57:7.

In 2 Chronicles 19:3, Jehoshaphat set his heart to seek God — echoing the steadfast heart of the psalmist.

In Ezra 7:10, Ezra set his heart to study and obey God's law — a similar devotion to the psalmist's steadfast heart.