'Known' in the Bible

And I give my heart to know wisdom, and to know madness and folly: I have known that even this is vexation of spirit;

I have known that there is no good for them except to rejoice and to do good during their life,

I have known that all that God doth is to the age, to it nothing is to be added, and from it nothing is to be withdrawn; and God hath wrought that they do fear before Him.

Better is a poor and wise youth than an old and foolish king, who hath not known to be warned any more.

Even the sun he hath not seen nor known, more rest hath this than that.

What is that which hath been? already is its name called, and it is known that it is man, and he is not able to contend with him who is stronger than he.

For many times also hath thy heart known that thou thyself also hast reviled others.

The labour of the foolish wearieth him, In that he hath not known to go unto the city.