I'm always interested to hear why people believe Jesus "taught" and obeyed the 10 Commandments.
And then I ask them why Jesus' closest followers obeyed the 10 Commandments after His death on the Cross - because that usually throws their original understanding for a loop. These were not Jews, they were the first Christians. The first followers of Jesus Christ and they knew exactly what He expected of Christians.
Nobody ever has any answer to these questions that makes any rational, logical sense other than to conclude that Jesus taught the 10 Commandments because that is what He expected Christians to do. And John says in 1 Jn. 2:6 that we are to live and walk as Jesus did so that eliminates the silly suggestion that Jesus was simply following some Jewish laws/traditions.
When all else is swiped off the table top so that there is no distractions left, it always comes down to "Well, what did Jesus do?" Are we not followers of Jesus Christ as the term Christian means? Today's Christians have no problem at all following 9 of the 10 Commandments, but they have been taught that the 4th Commandment, the Sabbath, is somehow evil, dirty and ungodly.
Where do we get these ideas when they do not come from the Bible?