When I came to Troas to preach the gospel of Christ, a door was opened for me in the Lord. . . thanks be to God, who in Christ always leads us in triumphal procession, and through us spreads the fragrance of the knowledge of him everywhere.
2 Corinthians 2:12-14

Missionaries aren’t the only Christians who need open doors.
In your own little corner of the world someone near you is still without God’s love and the hope of eternal life in Jesus Christ. It seems to me that the gospel is spread most effectively like a cold, from one person to the next.

These verses are great reminders that we can and should be praying for open doors. Ask God to give you an opening, maybe a chance comment from a coworker or neighbor will give you the perfect opportunity to share a little nugget of truth. Don’t preach, don’t condemn, and don’t run the other way when God answers your prayer!!!
You might be surprised how interested they are in something spiritual that brings comfort and inspiration.