To know God’s Word is to know God himself. When God commands mankind anything, it was exact. God commanded Adam and Eve not to eat of the tree of knowledge of good and evil. They did and God cast them out of Eden. God didn’t tell Noah to build any ark. No! He told him exactly how to build the ark. God commanded Solomon specifically how to build the temple of God right down to the very inch. When God commanded Moses to lead Israel out of Egypt he was very exact of how he wanted Israel delivered out of Egypt. When Moses himself smote the rock in the wilderness and didn’t give God the credit, he was prevented entering into the land of Canaan.
When Nadab and Abihu offered up a strange fire, that being, different than the one God commanded, they were immediately killed (Lev 10:1,2). When Uzzah touched the Ark of the Covenant, he was immediately killed (2 Sam 6:6,7). When Annaias and Sapphira kept back part of the price they received for a piece of land they had offered to God, they were struck dead (Acts 5:1-3). When Herod was speaking and the crowd said he spoke as a god, he was struck dead because he failed to give God the praise (Acts 12:23).
God gave his only Son to die on the cross for ours sins (Jn 3:16) He commanded the gospel to be preached unto all the world (Mk 16:15,16). He warned all who changed or who obeyed not the gospel would be accursed and cast into hell (Gal 1:6-9 f; 2 Thess 1:8,9). With God’s history for being specific, exact. and unbending, I would take Him at His Word!