Let us participate in the work of Christ.

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God calls us to participate in the work of the Lord. How? Reaching the lost with the gospel of the Lord.
For the Scripture says: Whoever believes in him will not be put to shame. 12 For there is no difference between Jew and Greek, for the same Lord over all is rich to all who call on him. 13 For everyone who calls on the name of the Lord will be saved.
14 How then will they call on him in whom they have not believed? And how will they believe in him of whom they have not heard? And how will they hear without someone preaching to them? 15 And how will they preach unless they are sent? As it is written: How beautiful are the feet of those who preach peace, of those who preach good news!
Romans 10:11-15
By reading the entire chapter 10 of Romans we can understand one thing that is summed up in one question: How will people hear about Christ if we who know do nothing? We as children of God are responsible for spreading the word of God to all people since salvation is available "for everyone who believes in Jesus." All believers have the possibility of spreading the gospel according to our resources, situation and environment. Some are called to take the gospel to great distances, while others are dedicated to praying for them as support, we are all useful in the ministry of evangelism.
Maybe at some point you came to think that you are not prepared for missionary work or it is not your calling, but in reality all believers have the calling to spread the gospel and this is a missionary work, we can be the ones sent or the ones who send, it can be in the best situations or in the not so good situations.
15 And he said to them, Go into all the world and preach the gospel to every creature. 16 He who believes and is baptized will be saved; but he who does not believe will be condemned.
Mark 16:15-16