Peter and John were in danger. The religious leaders in Jerusalem opposing the gospel had warned them to cease their missionary efforts (Acts 4:18). When the apostles reported this to the other believers, they immediately held a prayer meeting.

What happened next is thrilling. The believers first praised God. Then they asked for boldness that they might continue the work. The results were dramatic. The house shook, and the believers were filled with the Spirit. They boldly witnessed (vv.31,33), and enjoyed spiritual unity (v.32). They gave unselfishly to those in need (vv.32,34-37).

I have never felt a building shake at a prayer meeting, but I have seen God's power at work. When I've tried to help repair a broken marriage or a divided church, I've asked those involved to pray. Sometimes they refused. Other times they mumbled carefully worded prayers. The meeting failed.

But occasionally someone would pray in earnest. Almost immediately the atmosphere would change. Confession and forgiveness soon replaced charges and countercharges.

When we pray sincerely, praising God and presenting Him with petitions that seek His glory, great things happen. But first we must pray from the heart.  — Herbert Vander Lugt