'Weighty' in the Bible

and whoever may cause to stumble one of those little ones who are believing in me, it is better for him that a weighty millstone may be hanged upon his neck, and he may be sunk in the depth of the sea.

it is more profitable to him if a weighty millstone is put round about his neck, and he hath been cast into the sea, than that he may cause one of these little ones to stumble.

and he having come, there stood round about the Jews who have come down from Jerusalem -- many and weighty charges they are bringing against Paul, which they were not able to prove,

because the letters indeed -- saith one -- are weighty and strong, and the bodily presence weak, and the speech despicable.'