4 Behold, he who keeps Israel will neither slumber nor sleep.
Psalms 121:4 Cross References - WEB
1 Kings 18:27
27 At noon, Elijah mocked them, and said, “Cry aloud; for he is a god. Either he is deep in thought, or he has gone somewhere, or he is on a journey, or perhaps he sleeps and must be awakened.”
Psalms 27:1
1 By David. Yahweh is my light and my salvation. Whom shall I fear? Yahweh is the strength of my life. Of whom shall I be afraid?
Psalms 32:7-8
Psalms 127:1
1 A Song of Ascents. By Solomon. Unless Yahweh builds the house, they who build it labor in vain. Unless Yahweh watches over the city, the watchman guards it in vain.
Ecclesiastes 8:16
16 When I applied my heart to know wisdom, and to see the business that is done on the earth (even though eyes see no sleep day or night),
Isaiah 27:3
3 I, Yahweh, am its keeper. I will water it every moment. Lest anyone damage it, I will keep it night and day.
Revelation 7:15
15 Therefore they are before the throne of God, they serve him day and night in his temple. He who sits on the throne will spread his tabernacle over them.