en_tn/2sa/16/21.md

to keep the palace

The phrase "to keep" means to take care of. AT: "to take care of the palace" (See: rc://en/ta/man/translate/figs-idiom)

become a stench to your father

Ahithophel speaks of Absalom offending his father as if he would become something that had a strong and offensive odor. AT: "become offensive to your father" or "greatly insulted father" (See: rc://en/ta/man/translate/figs-metaphor)

Then the hands of all who are with you will be strong

Here the people who followed Absalom are referred to by their hands. The news will strengthen the peoples' loyalty to Absalom and encourage them. This can be stated clearly. AT: "The news of this will strengthen the loyalty of all who follow you" (See: rc://en/ta/man/translate/figs-synecdoche and rc://en/ta/man/translate/figs-explicit)