So what is the proof that the Spirit is being poured out on us? The voice of the church rings with prophetic clarity. The people of God are no longer passive, intimidated, unresponsive, uncertain. They are no longer preoccupied with self, convenience, comfort. They are no longer complaining, whining griping. Instead they become outspoken in God's praise and gospel truth, 'declaring the wonders of God' (Acts 2:11).
From Ray Ortlund's book When God Comes To Church