Take ye heed, watch and pray: for ye know not when the time is.
Be on your guard [constantly alert], and watch and pray; for you do not know when the time will come.
Watch out! Stay alert! You don’t know when the time is coming.
Take heed, be vigilant, and pray. For you do not know when the time may be.
Take ye heed, watch and pray. For ye know not when the time is.