God's Word makes it very clear that we are instructed to work hard and put our best effort forward. The Bible, especially in the wisdom-filled book of Proverbs, speaks often of the cause and effect relationship of hard work and rewards as well as laziness and ruin. Colossians 3:23 tells us a Christian should "work with all their heart as working for the Lord". Our work is probably one of the greatest testimonies of our faith!
Laziness has no place in the character of a follower of Jesus. Read what the Bible has to say about being lazy and the heart breaking consequences of having a lazy lifestyle.