While Jesus didn't explicitly list three specific actions the *church* would do in the way you might find in a bulleted list, we can infer three significant activities based on his teachings and the early church's actions as depicted in the New Testament:
1. Proclaim the Gospel to All Nations: Jesus commanded his disciples (who would form the foundation of the church) to go and make disciples of all nations, baptizing them and teaching them to obey his commands (Matthew 28:19-20). This implies a worldwide mission of evangelism and discipleship.
2. Love and Care for One Another: Jesus emphasized the importance of love within the community of believers, saying that the world would know they were his disciples by their love for one another (John 13:34-35). This points to a focus on mutual support, fellowship, and care within the church.
3. Persevere Through Persecution: Jesus warned his followers that they would face persecution because of their association with him (John 15:18-20). This suggests that the church would endure hardship, opposition, and suffering as it carries out its mission.