In Acts 20:17-38, Paul passed the torch of ministry to the elders of the church in Ephesus. In his speech to them, Paul described the character of elders and their work of ministry. With a few such elders as Paul described, the church has the team it needs to fulfill the mission that God has given it.
When we hear the gospel and believe it, Christians are sealed with the Holy Spirit.
In answer to Habakkuk’s complaint about God using the wicked to accomplish his purpose, God declared that the righteous will live by faith.
Christians need to walk wisely by being filled in the Holy Spirit.