Matthew 18:6 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. (YLT)
Luke 17:2 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. (YLT)
Acts 25:7 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, (YLT)
2 Corinthians 10:10 For, "His letters," they say, "are weighty and strong, but his bodily presence is weak, and his speech is despised." (WEB KJV ASV DBY WBS YLT NAS RSV NIV)
Psalms 139:17 How weighty also are Thy thoughts unto me, O God! How great is the sum of them! (JPS)
Proverbs 25:27 It is not good to eat much honey; and to search into weighty matters is itself a weight. (DBY)
Proverbs 27:3 A stone is heavy, and the sand weighty; but a fool's wrath is heavier than them both. (KJV JPS ASV DBY WBS NAS RSV)