Je was op zoek naar: immutable (Engels - Swahili)

that by two immutable things, in which it was impossible for god to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:
basi, kuna vitu hivi viwili: ahadi na kiapo, ambavyo haviwezi kubadilika na wala juu ya hivyo mungu hawezi kusema uongo. kwa hiyo sisi tuliokimbilia usalama kwake, tunapewa moyo wa kushikilia imara tumaini lililowekwa mbele yetu.

immutable, so that it may warn of a severe punishment from him; and give happy tidings to those who believe and do the right that there is a better reward (of paradise) for them,
kimenyooka sawa, ili kitoe onyo kali kutoka kwake, na kiwabashirie waumini watendao mema kwamba watapata ujira mzuri.