Great teaching! Php 2:13 For it is God which worketh in you both to will and to do of his good pleasure.

This the covenant he makes with us. He writes His commands on our minds, so we know what is expected of us, and our hearts, so we want to do those things! Holiness or separation. Come out and be separate and touch no unclean thing. Strangers here! Looking for a city whose builder and maker is God! The things of the temporal world lose its luster and the attraction becomes more and more to eternal things or things above.
Not of the world but in the world. Experientially