"Rejoice in the Lord always: and again I say, Rejoice." (Philippians 4:4)
Years ago, I decided I was going to walk by the Word of God. I told God that, as far as I was concerned, His Word was final and I'd confess it the rest of my life no matter what. That was the most important decision I've ever made.
Not too long after that, I decided that no matter what happened, whether I felt like it or not, I'd walk in love. Because the Bible clearly says "faith worketh by love." It won't work any other way.
Those two decisions--to operate by faith in the Word of God and to walk in love--are the two most important decisions I've ever made in my life.
Recently, though, God pointed out to me that there was something I'd been leaving out. The force of joy. He told me I have no right to walk by faith and love and just leave joy dormant in my spirit. It's too important. As He taught me about it, I soon came to realize that joy is an essential part of a life of victory. Without it, I might have an occasional triumph now and then, but I wouldn't be able to sustain them. They'd quickly slip away.
You see, joy is what gives you the strength (Neh. 8:10) to hold steady when the circumstances get rough. Joy gives you the ability to laugh in the devil's face when he starts trying to knock you off your faith. Joy gives you a kind of staying power that will make you a winner again and again.
So make a commitment to God that you're going to walk, not only in faith and in love but in joy as well. Make it a point to rejoice in the Lord always...and there won't be anything the devil can do or say to steal your victory from you.