'Keep' in the Bible

And he said to him, What askest thou me concerning goodness? one is good. But if thou wouldest enter into life, keep the commandments.

all things therefore, whatever they may tell you, do and keep. But do not after their works, for they say and do not,

And he said, Go into the city unto such a one, and say to him, The Teacher says, My time is near, I will keep the passover in thy house with my disciples.