When it came back to him in the evening it had a freshly-picked olive leaf in its beak, so Noah knew the floodwaters were mainly gone from the earth.
He waited another seven days and sent the dove out from the ark again.
Again he waited another seven days and sent the dove out again, but this time it didn't return to him.
They were to make an announcement in all their towns and in Jerusalem, saying, “Go into the hills and bring back branches of olive, wild olive, myrtle, palm, and other leafy trees, to make shelters to live in, as the Law requires.”
How can they go out and tell others unless they're sent? Just as Scripture says, “Those who come bringing the good news are truly welcome!”