Opportunities to share the gospel are given to us by God. It's in the Bible, Ephesians 3:7, TLB. "God has given me the wonderful privilege of telling everyone about this plan of His; and He has given me his power and special ability to do it well."
Opportunities to share the gospel may come from hardships. It's in the Bible, Philippians 1:14, TLB. "And because of my imprisonment many of the Christians here seem to have lost their fear of chains! Somehow my patience has encouraged them and they have become more and more bold in telling others about Christ."