'Heavier' in the Bible

Let heavier work be laid on the men, that they may labor therein; and don't let them pay any attention to lying words."

For now it would be heavier than the sand of the seas, therefore have my words been rash.

A stone is heavy, and sand is a burden; but a fool's provocation is heavier than both.

Let not many of you be teachers, my brothers, knowing that we will receive heavier judgment.