In this sermon based on 2 Samuel 5:24, Charles Spurgeon teaches that just as David waited for God's specific sign (the rustling in the mulberry trees) before going into battle, Christians should watch for special opportunities when God is clearly at work and then act with extra energy and urgency during those times. Spurgeon explains that when we see signs of spiritual awakening—like people being deeply moved by a sermon, someone showing interest in spiritual things, children asking questions about God, or revival breaking out in churches—we should "bestir ourselves" by praying more earnestly, speaking boldly to those who seem open, and seizing the moment rather than letting the opportunity pass. He emphasizes that while we should always be faithful in serving God, there are special seasons when the Holy Spirit is particularly active, and during these times we must be especially diligent to work with God rather than missing the chance to see souls saved and lives changed.

Sermon delivered on May 31, 1857.