'Understand' in the Bible

The LORD looked down from heaven upon the children of men, to see if there were any that did understand, and seek God.

Who can understand his errors? cleanse thou me from secret faults.

God looked down from heaven upon the children of men, to see if there were any that did understand, that did seek God.

They know not, neither will they understand; they walk on in darkness: all the foundations of the earth are out of course.

A brutish man knoweth not; neither doth a fool understand this.

Understand, ye brutish among the people: and ye fools, when will ye be wise?

Whoso is wise, and will observe these things, even they shall understand the lovingkindness of the LORD.

Make me to understand the way of thy precepts: so shall I talk of thy wondrous works.

I understand more than the ancients, because I keep thy precepts.