'Understand' in the Bible

“Behold, I am bringing a nation against you from afar, O house of Israel,” declares the Lord.“It is an enduring nation,It is an ancient nation,A nation whose language you do not know,Nor can you understand what they say.

Who is the wise man that may understand this? And who is he to whom the mouth of the Lord has spoken, that he may declare it? Why is the land ruined, laid waste like a desert, so that no one passes through?

“The heart is more deceitful than all elseAnd is desperately sick;Who can understand it?

“The anger of the Lord will not turn backUntil He has performed and carried out the purposes of His heart;In the last days you will clearly understand it.

The fierce anger of the Lord will not turn backUntil He has performed and until He has accomplishedThe intent of His heart;In the latter days you will understand this.

The Lord has spoken to you, O remnant of Judah, “Do not go into Egypt!” You should clearly understand that today I have testified against you.

Therefore you should now clearly understand that you will die by the sword, by famine and by pestilence, in the place where you wish to go to reside.