Fixed in Psalms
3 verses in Psalms.
Psalms 57:7My heart is fixed, O God, my heart is fixed: I will sing and give praise.
Psalms 108:1O God, my heart is fixed; I will sing and give praise, even with my glory.
Psalms 112:7He shall not be afraid of evil tidings: his heart is fixed, trusting in the LORD.