King James Version (KJV)
Once have I sworn by my holiness that I will not lie unto David.
Modern English
Once for all I have sworn by my holiness; I will not lie to David.
Hebrew
אַ֭חַת נִשְׁבַּ֣עְתִּי בְקָדְשִׁ֑י אִם לְדָוִ֥ד אֲכַזֵּֽב׃
ʾaḥat nishbaʿtiy bqadshiy ʾim ldavid ʾakazeb