'Keep' in the Bible

The religious service which is pure and stainless in the sight of our God and Father is to visit fatherless children and widowed women in their time of trouble, and to keep one's own self unspotted from the world.

A man who has kept the Law as a whole, but has failed to keep some one command, has become guilty of violating all.

and one of you says to them, "I wish you well; keep yourselves warm and well fed," and yet you do not give them what they need; what is the use of that?