King James Version (KJV)
My covenant will I not break, nor alter the thing that is gone out of my lips.
Modern English
I will not violate my covenant or alter the word that went forth from my lips.
Hebrew
לֹא אֲחַלֵּ֥ל בְּרִיתִ֑י וּמוֹצָ֥א שְׂ֝פָתַ֗י לֹ֣א אֲשַׁנֶּֽה׃
loʾ ʾaḥalel briytiy vmvoṣaʾ shpatay loʾ ʾashaneh