en_tn/psa/057/007.md

My heart is fixed, God, my heart is fixed

Being confident is spoken of as one's heart being firm rather than shaken or easily moved. The phrase is repeated to show that he has complete confidence in God and will not change. AT: "I am completely confident in you, God" (See: rc://en/ta/man/translate/figs-metonymy)

I will sing praises

Who he will sing to can be stated clearly. AT: "I will sing praises to you, God" (See: rc://en/ta/man/translate/figs-explicit)