Cross reference
Numbers 21:8
8 And the Lord said to Moses, Make an image of a snake and put it on a rod, and anyone who has been wounded by the snakes, looking on it will be made well.
Psalms 106:43-45
43 Again and again he made them free; but their hearts were turned against his purpose, and they were overcome by their sins.
44 But when their cry came to his ears, he had pity on their trouble:
45 And kept in mind his agreement with them, and in his great mercy gave them forgiveness.
Psalms 145:8
8 The Lord is full of grace and pity; not quickly angry, but great in mercy.
John 3:14
14 As the snake was lifted up by Moses in the waste land, even so it is necessary for the Son of man to be lifted up: