The mouth of the Lord hath spoken it

“Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool. If ye be willing and obedient, ye shall eat the good of the land: But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the LORD hath spoken it.” - Isaiah 1v18-20

There come times in every leader’s lives when they have to say “We are doing this because I said so.” That is one of the toughest parts of being a leader. Every so often authority must be tough. A leader’s words do have authority, but there is no word that has more authority that God’s.
God lays it down here. Sins are like scarlet and crimson – they are a barrier between man and God. They can be made as white as snow and as wool. Only one thing stands in the way –“be willing and obedient” to His word. His word says that Jesus is the only way. My what authority can we boldly say that – The mouth of the Lord hath spoken.” God said – that settles it.