'Precious' in the Bible

So he again sent the captain of a third fifty with his fifty. When the third captain of fifty went up, he came and bowed down on his knees before Elijah, and begged him and said to him, “O man of God, please let my life and the lives of these fifty servants of yours be precious in your sight.

Behold fire came down from heaven and consumed the first two captains of fifty with their fifties; but now let my life be precious in your sight.”

Hezekiah listened to them, and showed them all his treasure house, the silver and the gold and the spices and the precious oil and the house of his armor and all that was found in his treasuries. There was nothing in his house nor in all his dominion that Hezekiah did not show them.