Keeping the Sabbath holy

Hallo,friends. So today I looked into the scriptures(Isaiah 58:13)precisely.The whole of the chapter dealt on several issues on fasting.Which we will take up later the year,but the verse 13 and i quote"The Lord says,if you treat the Sabbath as sacred and do not pursue your interests on that day;if you value my holy day and honour it by not travelling,working,or talking idly on that day,(verse 14)then you will find the joy that comes from serving me. So as a Christian Doctor,health worker or security personnel,does it mean working on Sundays should be stopped or God does like one engaging in the stuffs mentioned in the above passages. Any with explanation.

A fruitful 2016

Happy new year,I'm confident we will do better.