'Behold' in the Bible

I have seen all the works that are done under the sun, and behold, all is vanity and pursuit of the wind.

I said in my heart, Come now, I will try thee with mirth, therefore enjoy pleasure. But behold, this also is vanity.

Then I looked on all the works that my hands had wrought, and on the labour that it had cost me to do them; and behold, all was vanity and pursuit of the wind, and there was no profit under the sun.

And I turned myself to behold wisdom, and madness, and folly; for what shall the man do that cometh after the king? that which hath already been done.

And I returned and saw all the oppressions that are done under the sun: and behold, the tears of the oppressed, and they had no comforter; and on the side of their oppressors was power, and they had no comforter.

Behold what I have seen good and comely: it is to eat and to drink, and to enjoy good in all his labour wherewith man laboureth under the sun, all the days of his life which God hath given him: for that is his portion.