John 5:1-18
The Father and Son working together
so the Jews said to the man who had been healed, ‘It is the Sabbath; the law forbids you to carry your mat.’ The OT forbad work (i.e. carrying out one’s usual occupation) on the sabbath. This included bearing loads on the sabbath: ‘This is what the Lord says: Be careful not to carry a load on the Sabbath day or bring it through the gates of Jerusalem. Do not bring a load out of your houses or do any work on the Sabbath, but keep the Sabbath day holy, as I commanded your forefathers’
as ‘stop sinning’, implies that the man was engaged in some sinful activity and Jesus was telling him to stop doing it. Jesus had already dealt with the man’s physical infirmity; now he addressed his spiritual condition. Those who interpret Jesus’ words as a command to ‘stop sinning’ suggest a couple of sins he may have been involved in: (1) he was flaunting his new-found freedom by carrying his mat around Jerusalem without any regard for the sabbath law (unsatisfactory because it was Jesus who told him to take up his mat and carry it in the first place); (2) he returned directly to ‘the Jews’ and told them who his benefactor was (this interprets in a very negative light the man’s action in giving news about who healed him, which may be unjustified)