G0761–ἀσάλευτος–asaleutos

And falling into a place where two seas met they ran the ship aground, and the prow having stuck itself fast remained unmoved, but the stern was broken by the force of the waves.

ἀσάλευτος, asaleutos “immovable,”

Wherefore let us, receiving a kingdom not to be shaken, have grace, by which let us serve God acceptably with reverence and fear.

ἀσάλευτον asaleuton “not to be shaken”