Why did Abraham Cut the Wood only after Saddling the Donkey?

Cutting the wood to sacrifice Isaac was the last thing that Abraham did when he set out for Moriah. He had prepared the servants, he had saddled the donkey and then went to cut the firewood! See the sequence of events:

 'So Abraham rose early in the morning, saddled his donkey, and took two of his young men with him, and his son Isaac. And he cut the wood for the burnt offering and arose and went to the place of which God had told him' (Gen 22:3, ESV).

He should have cut the wood the previous evening, before going to bed. Preparing the servants, and saddling the donkey could be in the morning. Taking time to cut the wood in the morning would certainly delay the journey.

We can't explain Abraham's peculiar behavior; only some guesses. Maybe he was expecting God to intervene before they set out. Did Abraham think that getting up in the morning, saddling the donkey and getting the servants ready will send enough clues to God that he is willing to obey and expect him to intervene? So, cutting wood will not be needed. Probably, that is what he might have thought.

But for God the commitment he expected from him was more than just cutting the wood, setting out for the journey, even stacking the wood and making Isaac lie on the wood. But the commitment that God expected from Abraham required him more than these gestures to actually swinging the knife at him to slaughter him. That is the level of obedience that God expected from him.

No surprise!

This is what he expected from his son on the cross as well. God sent his son to the earth, made him to have a humble birth in a rather poor family, to hunger and thirst.... God still waited until he was beaten and ridiculed. That was not enough. He allowed him to be crucified and was buried. Then only the obedience was complete. Till, as Paul puts it he 'became obedient till the death on a cross.' 

However, Abraham got his son back; so also Jesus Christ. Isaac was not killed, but the Son of God was martyred to be brought back to life to live for ever. God proved through the life of Isaac and that of his Son Jesus Christ that obedience is always rewarded.

Every test of faith involves obedience. The level of obedience could vary. However, God expects us to go the deeper levels of obedience that he expects from us. However, he is watching. He intervenes on the right time. Just before the knife splits the throat of Isaac and just before the fourth night falls on the cave where his precious son is buried.