'Though' in the Bible

Wisdom is supreme. Get wisdom. Yes, though it costs all your possessions, get understanding.

He won't regard any ransom, neither will he rest content, though you give many gifts.

Though you grind a fool in a mortar with a pestle along with grain, yet his foolishness will not be removed from him.

A servant can't be corrected by words. Though he understands, yet he will not respond.