They are good things to do.. But they are works, our doings.. We are saved by What Jesus did for us.. Not what we do or fail to do, except for believing Jesus and trusting in the Atonement He secured for our salvation..
We believe and trust, and He Redeems us..
The only works that do not apply is works of the flesh,not works of the Spirit,for the Bible says works of the Spirit,that a man is justified by those works,and not by faith alone.
Not saved by works is saying that any works we do to try to find favor with God will not save us,but only by confessing Christ are we saved,which is a free gift of God.
Not saved by works mainly means apart from Christ,like the false religions,and faith without works is dead,after we are saved,and have the Spirit.
People are confusing it,placing not saved by works in the wrong time,although if we do Old Testament physical ordinances in the New Testament it has no bearing on our salvation.