'Weighted' in the Bible

“Behold, I am weighted down beneath youAs a wagon is weighted down when filled with sheaves.

This is what he let me see: and I saw the Lord stationed by a wall made straight by a weighted line, and he had a weighted line in his hand.

And the Lord said to me, Amos, what do you see? And I said, A weighted line. Then the Lord said, See, I will let down a weighted line among my people Israel; never again will my eyes be shut to their sin: