God has a perfect will- His desire for us, and He gives us multiple admonitions to take that path.
God has a permisive will- He allows us to choose our direction.
Example:
Deu 30:19 I call heaven and earth to record this day against you, that I have set before you life and death, blessing and cursing: therefore choose life, that both thou and thy seed may live:
Deu 30:20 That thou mayest love the LORD thy God, and that thou mayest obey his voice, and that thou mayest cleave unto him: for he is thy life, and the length of thy days: that thou mayest dwell in the land which the LORD sware unto thy fathers, to Abraham, to Isaac, and to Jacob, to give them.
One choice is His perfect will and one He will permit.