'Opportunity' in the Bible

What then is Apollos? And what is Paul? Servants through whom you believed, even as the Lord gave opportunity to each one.

Were you called while a slave? It should not be a concern to you. But if you can become free, by all means take the opportunity.

because a door of great opportunity stands wide open for me, but there are many opponents.

Now concerning the brother Apollos, I begged him much that he would go to you with the brethren; but it was not at all his will to go now; but he will come when he shall have good opportunity.