en_tn/rom/04/20.md

did not hesitate in unbelief

You can translate this double negative in a positive form. AT: "kept on acting in faith" (See: rc://en/ta/man/translate/figs-doublenegatives)

he was strengthened in faith

You can translate this in an active form. AT: "he became stronger in his faith" (See: rc://en/ta/man/translate/figs-activepassive)