In Colossians 3:5, Paul begins a description in the Greek of an act that is final, an act that is once and for all and at once. It reveals that what has been dealt with in my life has been dealt with once and for all. This is made clear in Hebrews 10: 10 where it is taught that Christ was the offering for us once and for all. But it says that it is not only once and for all but also at once. This means that every time something tries to come on us, we have to act at once on the once-and-for-all act of God’s grace, which put away the very thing that is trying to act upon us to make us act contrary to God. Do not hesitate to act immediately in the act that is once and for all.
Reservation deprives us of the victory that is ours. A delay gives the devil a beginning in the provision we make in the flesh. Why should a person have to think over that which is thought by an Almighty God Who presents only truth? Christ has taken care of Adam once and for all, but, through His life, we must act on that at once when temptation comes. The realization of the act, and its reality as it acts within us, puts to death our members that are on earth. Our members are no longer related to the dust, but to something far above it. In our heavenly position (Ephesians 1:22; 25) and in our Corporate union (I Corinthians 6:17; Ephesians 5:30), our members become instruments of life.