Take care of your enemies and pray for them because they don't know what they are doing. Pavle (Serbian)
When God wants to have mercy on someone, He inspires someone else to pray for him, and He helps in this prayer. Silouan the Athonite
If we do not pray for the sick, the illness will progress naturally. Whereas, if we pray for them, it can alter its natural course. Therefore, always pray for the sick. Paisios of Mount Athos
Pray for revenge, and God will turn a deaf ear. Russian Proverb
If you pray for another, you will be helped yourself. Yiddish Proverb
People fool themselves. They pray for a long life but fear old age. Chinese Proverb