'Diligently' in the Bible

For pass over to the islands of Kittim, and see; and send to Kedar, and consider diligently; and see if there has been such a thing.

It shall happen, if they will diligently learn the ways of my people, to swear by my name, As Yahweh lives; even as they taught my people to swear by Baal; then shall they be built up in the midst of my people.

It shall happen, if you diligently listen to me, says Yahweh, to bring in no burden through the gates of this city on the Sabbath day, but to make the Sabbath day holy, to do no work therein;