ESV: A Song. A Psalm of David. My heart is steadfast, O God! I will sing and make melody with all my being!
NIV: A song. A psalm of David. My heart, O God, is steadfast; I will sing and make music with all my soul.
NASB: My heart is steadfast, God; I will sing, I will sing praises also with my soul.
CSB: My heart is confident, God; I will sing; I will sing praises with the whole of my being.
NLT: My heart is confident in you, O God; no wonder I can sing your praises with all my heart!
KJV: {A Song or Psalm of David.} O God, my heart is fixed; I will sing and give praise, even with my glory.
NKJV: {A Song. A Psalm of David.} O God, my heart is steadfast; I will sing and give praise, even with my glory.