Be not rash with thy mouth] Either in vowing, or in praying: meaning, that we should reverently and advisedly go about either, psal. 2. 11. Hebrews 12:28. thing] Or, word. for God is in heaven] An heavenly King: and subjects must be brief and discreet in their petitions. in heaven] Matthew 6:9. therefore let thy words be few] He heareth thee not for thy many words sake, or often repetitions, but considereth thy faith, and fervent minde. And also vow no more then thou mayest comfortably perform. be few] Proverbs 10:19. Matthew 6:7.