Get you up to a high mountain, O Zion, herald of good tidings; lift up your voice with strength, O Jerusalem, herald of good tidings, lift it up, fear not; say to the cities of Judah, “Behold your God!” Behold, the Lord GOD comes with might, and his arm rules for him; behold, his reward is with him, and his recompense before him. He will feed his flock like a shepherd, he will gather the lambs in his arms, he will carry them in his bosom, and gently lead those that are with young. — Isaiah 40:9-11
Take heed, watch; for you do not know when the time will come. It is like a man going on a journey, when he leaves home and puts his servants in charge, each with his work, and commands the doorkeeper to be on the watch. Watch therefore — for you do not know when the master of the house will come, in the evening, or at midnight, or at cockcrow, or in the morning — lest he come suddenly and find you asleep. And what I say to you I say to all: Watch.” — Mark 13:33-37