Mark 13:33 Take ye heed, watch and pray: for ye know not when the time is. 13 I MC VC

Luke 18:1 And he spake a parable unto them to this end, that men ought always to pray, and not to faint; 7 I MC VC

John 16:24 Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full. 9 I MC VC