Our life-style should be disciplined. It's in the Bible, I Corinthians 9:24-25, TLB. "In a race, everyone runs but only one person gets first prize. So run your race to win. To win the contest you must deny yourselves many things that would keep you from doing your best. An athlete goes to all this trouble just to win a blue ribbon or a silver cup, but we do it for a heavenly reward that never disappears."
Our life-style should be consistent with God's Word. It's in the Bible, II Timothy 2:15, TLB. "Work hard so God can say to you, 'Well done. Be a good workman, one who does not need to be ashamed when God examines your work. Know what His Word says and means."