'Keep' in the Bible

The religion which is holy and free from evil in the eyes of our God and Father is this: to take care of children who have no fathers and of widows who are in trouble, and to keep oneself untouched by the world.

But if you keep the greatest law of all, as it is given in the holy Writings, Have love for your neighbour as for yourself, you do well:

For we all go wrong in a number of things. If a man never makes a slip in his talk, then he is a complete man and able to keep all his body in control.