Begin by reading and meditating on Matthew 28:19-20.
God has placed you in a unique context and equipped you in a unique way to be the one who reaches out to those in need – this means those who need encouragement as well as those who need correction. And this includes those who do not know Jesus, as well as his disciples, those who are apparently healthy, and those who are obviously hurting. You will have more opportunities to initiate than you can take, but you are likely to take fewer than you should.
Look around yourself. God is giving you chances to act. He has put people near you who need your help financially, your time relationally, and your words of bold encouragement and gentle rebuke. The opportunities are always there, but they are difficult to see if you are too focused on yourself. You must take the time to be truly present where God has put you. Begin to think of others as they really are – men and women in need of grace.
What will compel you to take the first step toward those around you in need? The deepness of their need? The desperateness of their situation? Perhaps it will be an understanding of what you have received from others who have been faithful to God and have taken the initiative with you, to help you see the truth, know Christ, grow in grace, and persevere through difficulty. Or maybe it will be that God not only commands you to do this but empowers you to do it, as well. Wherever you are, today you should be the first to move. Initiate for the glory of God and the good of those around you.
Taken from Chap.21 “Initiate” (found in Part Two, “The Gospel and Others”) in Note to Self: The Discipline of Preaching to Yourself by Joe Thorn (Crossway, 2011), pp.79-80.