en_tn_lite_do_not_use/mat/10/13.md

If the house is worthy

Here "the house" represents those who live in the house. Alternate translation: "If the people in that house receive you well" or "If the people who live in that house treat you well"

let your peace come upon it

"let them receive your peace" or "let them receive the peace that you greeted them with"

if it is not worthy

"if they do not receive you well" or "if they do not treat you well"

let your peace return to you

This could mean 1) that God would hold back peace or blessings from that household or 2) the apostles were supposed to do something, such as asking God not to honor their greeting of peace. Alternate Translation: "take back your greeting of peace"