Hi there, the Biblical teaching is that it is lawful to do works of neccesity and mercy - see Jesus' response when the Pharisees tried to trap him for healing a man on the Sabbath ( Matthew 12 : 9-12)
Nurses, ambulance drivers, care-workers, ministers of the gospel etc have a perfect Biblical warrant to work on the Sabbath - in fact it would be going against Christ's teaching for them not to do their job on Sunday.
Shop or restaraunt work does not come into this category though.
If a colleague's has the right to have sunday off that forces me to work every sunday.
Yeah and that's not right; this is why as a Christian I would not work in that kind of job... I also would not go to a restaraunt or shop on Sunday, because that's taking advantage of the fact that somebody else is forced to work on a Sunday.
Obviously it's not really possible not to use water or electricity, and some people live a long way from their church and don't have cars, so it's not possible for them to refrain from using public transport. However I think as a Christian I should do as much as I can to keep the Sabbath. Nobody keeps it 100 percent perfectly, but that's not a reason to wilfully break it. I will never in my life understand Christians who strive to keep the other 9 commandments and think you're allowed to ignore that one.
The point of the Biblical Sabbath is not just that it is a day of rest - the commandment says "Remember the Sabbath day and keep it holy". So it's not just about ME getting to relax - it's about GOD and dedicating the day to Him. So my "rest" shouldn't involve, e.g. watching Eastenders or anything else that I can do some other time in the week - I should try to spend time praying, meditating, reading the Bible or a book that will help me grow in faith. I'm very blessed that I do a job where I don't have to work on Sunday - others are not so fortunate, so I should be mindful of this and try to give the day back to Him.
NB I'm not trying to be "holier-than-thou" and saying I do all these things all the time myself! But this is what I should strive for!