en_tn/act/21/10.md

a certain prophet

This person was known as a person who regularly received and passed along messages from God.

named Agabus

Agabus was a man from Judea. (See: rc://en/ta/man/translate/translate-names)

took Paul's belt

"removed Paul's belt from Paul's waist"

With it he tied

"using Paul's belt, he restrained"

hand him over

"relinquish him" or "deliver him"

into the hands of

"into the legal custody of." The Gentiles would arrest Paul by taking hold of him with their hands. (See: rc://en/ta/man/translate/figs-metonymy and rc://en/ta/man/translate/figs-metaphor)