Really?
Did He instruct us to pray we specifically keep any other commandment?[\quote]
Yes, really.
you need to provide evidence He did so. A text that says something akin to "and pray that after I am gone back to heaven you can make images of me to remember me...in fact I am going to sit for a portrait as a prototype"...
Or "pray that in another hundred years you are obligated to be celibate to serve my church"
Or "pray that you keep from killing when you spread the gospel"
Or even "pray you refrain from stealing and lie when you sell your properties..."
He singled out the Sabbath and instructed we pray the Sabbath be kept...
He did not dwell on much about keeping the Sabbath.
instruction of Sabbath keeping in the NT occurs more often than in the Torah...
Of the commandments no other commandment did He do "as was His custom"...the writer emphasized it...
He announced His ministry on a Sabbath...
He rose from the dead on the Sabbath
He admonished Pharisees to not to be legalistic.
in order to observe the Sabbath more fully...
It is just find if it is good deeds.
in order to receive a better blessing from its better observance
He kept on healing people even Sabbath day.
yes yes bold it... write it in larger font even
Healing is exactly the point of the Sabbath as even God Himself Creator of the universe rested and was refreshed by it...
As for changing it to Sunday...He was very clear that of Himself He could do NOTHING including changing the Law of His father...
The Son can do nothing of Himself, but what He sees the Father do; for whatever He [God the Father] does, the Son also does in like manner” (John 5:19).