Adam would be prying into God's secrets, and tasting what was forbidden. Though Adam had a choice of all the other trees, yet his palate grew wanton, and he must have this tree. Like Israel, God sent them manna, angels' food, nay, but they had a hankering after quails. It was not enough that God supplied their wants, unless he should satisfy their lusts. The tree of knowledge was none of Adam's, yet he took of it, and did sacrilegiously rob God of his due.
Sacrilege is double theft.
This was great presumption. One sin may have many sins in it. We are apt to have slight thoughts of sin, and say it is but a little one. As in one volume there may be many works bound up, so there may be many sins in one sin. The dreadfulness of the effect.