“Thus says Yahweh.

‘Maintain justice!

Do what is right!

Soon my salvation will come!

My deliverance will be revealed.

Happy is the mortal

Who does this!

He holds this fast.

He keeps the Sabbath.

He does not profane it.

He refrains from doing any evil.’”

This is the beginning of what is often called Third Isaiah, after the Israelites had returned from the Exile and settled in Israel. Here we have a brief description of the happy blessed ones. Yahweh set out the rules they were to follow. They had to maintain justice and do what is right. Salvation and deliverance were soon to come. These happy ones would have to keep the Sabbath, by not profaning it. They also had to refrain from doing any evil. This seems simple enough.