In Genesis chapter 22 we see Abraham being tested by God. God wanted to see if Abraham feared Him and if He would withhold his only son from God. Abraham was obedient and Isaac was spared, but a sacrifice was still needed so God provided. The name for God in this passage should be a familiar one it is Jehovah-jireh (pronounced je-HOE-vah JIE-rah) and means literally The LORD Will Provide. God provided a ram for Abraham to sacrifice in place of his son Isaac. And years later God would provide His Son to be a sacrifice in our place.
It is important to note that the offering that was being made was a burnt offering. It was a voluntary offering made in love as an act of worship. It was specifically done as an atonement for sin. It is not meant to be an empty ritual or something done out of obligation. It was done voluntary out of love. Jesus became our offering willingly because He loves us. Should our worship unto Him be any less.
God has provided everything we need up to and including a willing atonement for our sins, if that doesn't move your heart with gratitude to the LORD then I'm not sure anything truly will.