'Strive' in the Bible

But [strive for and actively] seek His kingdom, and these things will be given to you as well.

For as thou goest with thine adverse party before a magistrate, strive in the way to be reconciled with him, lest he drag thee away to the judge, and the judge shall deliver thee to the officer, and the officer cast thee into prison.

Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.