Because he's going to try. Just stay grounded in Christ and whatever He gives you that you gives joy, that you glorify Him the most for then don't let the devil sneak in and get it. It could be a marriage, a house, a car, children, a best friend, a little bite of food, anything that you have that makes you want to run to the rooftops and back again shouting "Glory, Hallelujah!" then fight for it. And if these things were to be taken away, praise Him still. Give glory to God and tell Him how good He is. Yeah, He already knows how good He is, but He loves it when we say it anyways. Keep fighting. And I don't mean to go out there and physically haul back and punch somebody, I mean fight down on your knees, with your hands folded, looking up at the Father and saying "Lord I need in the good times and the bad. I need you more than air that I breathe. I need you more than next beat of my heart. I love you Lord and praise your sweet Holy name. You are the king of kings and Lord of lords. You are God and there is none like you. Praise your Holy name. I love you Lord Jesus. It's your sweet blessed name I pray and I thank you for all things. Amen." .