17 Since you call on a Father who judges each person’s work impartially, live out your time as foreigners here in reverent fear. 18 For you know that it was not with perishable things such as silver or gold that you were redeemed from the empty way of life handed down to you from your ancestors, 19 but with the precious blood of Christ, a lamb without blemish or defect. 20 He was chosen before the creation of the world, but was revealed in these last times for your sake. — 1 Peter 1:17-20 NIV
There is nothing that we can offer to God that is acceptable for our redemption. Before the creation of the world, the price for our salvation was agreed upon by the Trinity. Nothing less than a sacrificial Lamb without blemish would be acceptable. In the Old Testament, the lamb had to be sacrificed over and over. In the New Testament, the perfect Lamb is sacrificed once for all sins of all times, past, present and future.
25 Nor did he enter heaven to offer himself again and again, the way the high priest enters the Most Holy Place every year with blood that is not his own. 26 Otherwise Christ would have had to suffer many times since the creation of the world. But he has appeared once for all at the culmination of the ages to do away with sin by the sacrifice of himself.— Hebrews 9:25-26 NIV