The hand of God is behind signs, wonders and miracles, but faith is the only way to provoke the hand of God on any issue (Isaiah 53:1; Psalm 118:23; Deuteronomy 26:8).
The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit (John 3:8)