Parallel
Psalms 88:36
Rahlfs Septuagint (1935) · Berean Standard Bible
ἅπαξ ὤμοσα ἐν τῷ ἁγίῳ μου εἰ τῷ Δαυιδ ψεύσομαι
89:35
Once and for all I have sworn by My holiness—I will not lie to David—