'Observe' in the Bible

so that Jehovah doth establish His word which He spake unto me, saying, If thy sons observe their way to walk before Me in truth, with all their heart, and with all their soul; saying, There is not cut off a man of thine from the throne of Israel.

And the men observe diligently, and hasten, and catch it from him, and say, 'Thy brother Ben-Hadad;' and he saith, 'Go ye in, bring him;' and Ben-Hadad cometh out unto him, and he causeth him to come up on the chariot.