Leviticus 10 Do you excuse your or other’s sin? How does God feel about that when you do? The evidence is pretty clear. King Saul was told to wait for Samuel but did not. Cain knew the right sacrifice was a lamb but presumed a gift of vegetables was ok. Ananias and Sapphira presumed a white lie was ok. A “friend” was caught in adultery and when chastised said, “God will understand.”
Nadab and Abihu, sons of Aaron, are like those examples. They presumed that taking a short cut was ok. They took their fire pan, put fire into it; then set incense into it and went in to and presented strange fire before the Lord—“which he had NOT commanded them to do.” Immediately, fire went out from the presence of the Lord and consumed them so that they died before the Lord.”
Yes God understood all of those people. He understood that each presumed He would overlook their sin but learned all too late that the consequences for presuming is deadly.
Whereas we are quick to excuse sin, God does not. Take heed to King David’s words: “keep back Your servant from presumptuous or flagrant sins; Let them not rule over me; Then I will be blameless,”[Ps 19:13]