Then the LORD said to Moses, “Make a fiery serpent, and set it on a pole; and it shall be that everyone who is bitten, when he looks at it , shall live.”
..”And as Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up. That whoever believes in Him should not perish but have eternal life.”
Jesus to Nicodemus John 3:14,15
Numbers 21:8
..this is the New Covenant that I will make with the house of Israel after those days, says the LORD: “I will put My law in their minds, and write it on their hearts; and I will be their God, and they shall be My people”..
Jeremiah 31: 33
Hebrews 10:16