Fearing that we would be dashed against the rocks, they dropped four anchors from the stern and prayed for daylight.

Acts 27:29

Because God wanted to make the unchanging nature of his purpose
very clear to the heirs of what was promised, he confirmed it
with an oath. God did this so that, by two unchangeable things
in which it is impossible for God to lie, we who have fled to
take hold of the hope offered to us maybe greatly encouraged.
We have this hope as an anchor for the soul, firm and secure.

Hebrews 6: 17-19a