The term BE PENITENT is an imperative to express remorse and regret for one's actions. The crossword solutions for this term are REPENT (6 letters), RUE (3 letters), APOLOGISE (9 letters), ATONE (5 letters), RUER (4 letters), LENT (4 letters), and STRAYER (7 letters). REPENT means to turn away from sin and seek forgiveness, while RUE means to feel sorrow or regret. APOLOGISE is to express regret for a wrong action, and ATONE is to make amends for a wrong. Ruer is a synonym for one who repents, LENT is a period of time for penitence, and strayer is one who has gone astray and needs to REPENT.