'Knowledge' in the Bible

Then the children of Judah went to Joshua in Gilgal; and Caleb, the son of Jephunneh the Kenizzite, said to him, You have knowledge of what the Lord said to Moses, the man of God, about me and about you in Kadesh-barnea.

for the fleeing thither of a man-slayer smiting life inadvertently, without knowledge; and they have been to you for a refuge from the redeemer of blood.

'And when the redeemer of blood doth pursue after him, then they do not shut up the man-slayer into his hand, for without knowledge he hath smitten his neighbour, and is not hating him hitherto;