'Understand' in the Bible

For we do not have a High Priest who is unable to sympathize and understand our weaknesses and temptations, but One who has been tempted [knowing exactly how it feels to be human] in every respect as we are, yet without [committing any] sin.

We have a great deal to say about this, and it’s difficult to explain, since you have become too lazy to understand.

Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear.

For you know that later on, when he wanted [to regain title to] his inheritance of the blessing, he was rejected, for he found no opportunity for repentance [there was no way to repair what he had done, no chance to recall the choice he had made], even though he sought for it with [bitter] tears.