'Weighty' in the Bible

So there was hail, and lightning (fireballs) flashing intermittently in the midst of the extremely heavy hail, such as had not been in all the land of Egypt since it became a nation.

How precious also are Your thoughts to me, O God!How vast is the sum of them!

Stone is heavy and the sand weighty,But a fool’s [unreasonable] wrath is heavier and more burdensome than both of them.

Furthermore, what the king demands is an unusual and difficult thing indeed! No one except the gods can reveal it to the king, and their dwelling is not with [mortal] flesh.”

for they say, “His letters are weighty and forceful and impressive, but his personal presence is unimpressive and his speech contemptible [of no account].”

And great, we confess, is the mystery [the hidden truth] of godliness:He (Jesus Christ) who was revealed in human flesh,Was justified and vindicated in the Spirit,Seen by angels,Preached among the nations,Believed on in the world,Taken up in glory.