Hebrews 10:7–8

    Then said I, Lo, I come (in the volume of the book it is written of me,) to do thy will, O God.
    Above when he said, Sacrifice and offering and burnt offerings and offering for sin thou wouldest not, neither hadst pleasure therein; which are offered by the law.

There is something strong and beautiful in that sentence: “Lo, I come… to do thy will, O God.”
That is the Son stepping forward.

All through the old system, sacrifices were offered day after day, year after year. Lambs, goats, bulls. Blood on altars. Smoke rising. Priests moving back and forth. But those sacrifices were never the final delight of the Father. They were never the thing that satisfied His heart in themselves. They were pointing ahead. They were a promissory note, waiting on the day the full payment would finally come due.

That is why the Son says, “I come.”

The animals could picture something. They could preach in shadows. They could whisper that sin is serious and that blood is necessary. But they could not do the will of God in the fullest sense. Only Jesus could do that. Only Jesus could step into a body, walk in complete obedience, and offer Himself willingly.

Here’s the thing: a promissory note matters only because something real stands behind it. A check is just paper unless there is real weight behind the signature. In the same way, the sacrifices under the law only had meaning because they pointed to Christ. They had borrowed value. They were backed by the coming Lamb of God.

But once He came, the shadows had served their purpose.

Think about old currency from a fallen government. At one time it may have carried weight in the marketplace. But once that government is gone, the bills may still look impressive while having no power to buy what they once could. That is what the old sacrificial system became once Christ fulfilled it. It had pointed faithfully, but once the true Sacrifice came, the old offerings had no saving power left in themselves.

And the same is true for all the little sacrifices we still try to bring.

We may not drag lambs to an altar, but we build our own systems just the same. We think, “Maybe if I pray a little longer, read a little more, perform a little better, maybe then God will hear me. Maybe then He will bless me. Maybe then I can come near.” But all of that becomes another altar of our own making if we are trying to earn what God only gives through Christ.

Notice this: God has pleasure in one Sacrifice.

Not in the sacrifice of your pride trying harder.
Not in the sacrifice of your fear trying to bargain.
Not in the sacrifice of your performance trying to impress Him.

In Christ.

That is where the Father’s pleasure rests.

And when that finally sinks down into a person’s heart, something loosens. The chains of self effort start to break. The soul stops pacing the floor. You realize you are not trying to persuade God to be good to you by bringing enough religious effort. You are receiving from Him on the basis of what His Son has already done.

That changes the whole Christian life.

Now prayer is not bribery.
Now obedience is not panic.
Now worship is not earning.
Now drawing near is not negotiation.

It is response.

Jesus came to do the Father’s will, and He did it perfectly. He became the one Sacrifice in whom the Father has full pleasure. So the believer stands not on the shaky floor of personal performance, but on the solid ground of divine provision.

That’s the point. Once you see the worth of His Sacrifice, you stop trying to make your own.