Parallel
Psalms 61:12
Swete's Septuagint · Berean Standard Bible
ἅπαξ ἐλάλησεν ὁ θεός, δύο ταῦτα ἤκουσα, ὅτι τὸ κράτος τοῦ θεοῦ
62:11
God has spoken once; I have heard this twice: that power belongs to God,
62:12
and loving devotion to You, O Lord. For You will repay each man according to his deeds (note: Cited in Romans 2:6).