The place was shaken.... — The impression on the senses was so far a renewal of the wonder of the Day of Pentecost, but in this instance without the sign of the tongues of fire, which were the symbols of a gift imparted once for all, and, perhaps also, without the special marvel of the utterance of the tongues. The disciples felt the power of the Spirit, the evidence of sense confirming that of inward, spiritual consciousness, and it came in the form for which they had made a special supplication, the power to speak with boldness the word which they were commissioned to speak.
Related Commentaries of Acts 4:31
Acts 4:31
31 And when they had prayed, the place was shaken where they were assembled together; and they were all filled with the Holy Ghost, and they spake the word of God with boldness.