'Guardian' in the Bible

Later, the LORD asked Cain, "Where's your brother Abel?" "I don't know," he answered. "Am I my brother's guardian?"

He will never let your foot slip, nor will your guardian become drowsy.

The LORD is your guardian; the LORD is your shade at your right side.

maker of heaven and earth, the seas and everything in them, forever the guardian of truth,

Since your vast business dealings filled you with violent intent from top to bottom, you sinned, so I cast you away as defiled from the mountain of God. I destroyed you, you guardian cherub, from the midst of the fiery stones.