'Observe' in the Bible

So Absalom told his servants, "Observe that Joab's grain field lies next to mine. He has barley planted there. Go set it on fire." So Absalom's servants set the field on fire.

And the man saith unto Joab, 'Yea, though I am weighing on my hand a thousand silverlings, I do not put forth my hand unto the son of the king; for in our ears hath the king charged thee, and Abishai, and Ittai, saying, Observe ye who is against the youth -- against Absalom;