Colossians 3:23 Whatever your task, work heartily, as serving the Lord and not men.
Philippians 2:14 Do all things without grunting or questioning.
One way we can stand out as disciples of Christ in the world we live in is to serve with joy. It’s not a good witness to the Lord for the Christian in the workplace (you may be the only one) to be the whiner or complainer. We shouldn’t be the one who everyone sees as negative. We’ve received a joy that comes from the Lord and we ought to let it show.
When we’re capable of finding joy in the mundane or good in the seemingly bad, people wonder how that’s possible. This gives us a great opportunity to point them to Jesus, our source of peace. If we work hard at all tasks given to us, we bring glory to God. He has not put us on this earth to be lazy or to complain.
Work hard, don’t complain, serve others. Be a joy to others so that they will want to know your Master.