614. 14:2 And I heard a voice from heaven, like the voice of many waters. This symbolizes the Lord speaking through the new heaven with Divine truths.

A voice from heaven symbolizes an utterance or declaration coming from the Lord through heaven, for when a voice is heard from heaven, it comes from the Lord. Here it comes through the new heaven formed of Christians, meant by Mount Zion on which the Lamb was seen standing, and with him the one hundred and forty-four thousand (nos. 612[1-4], 613). Many waters symbolize Divine truths (no. 50).

The Lord is similarly depicted as speaking through heaven with Divine truths in the following places:

The Son of Man's voice was heard "as the sound of many waters" in Revelation 1:15. And the voice from the throne "as the sound of many waters" in Revelation 19:6. The voice of the God of Israel "like the sound of many waters" in Ezekiel 43:2.

The voice of Jehovah is over the waters..., Jehovah over many waters. (Psalms 29:3)

...the sound of (the cherubim's) wings, like the sound of many waters... (Ezekiel 1:24)

Cherubim symbolize the Word (no. 239), thus the Divine truth with which the Lord speaks.

605. To receive from it a mark on their right hand and on their foreheads. This symbolically means that no one is acknowledged as a Protestant Reformed Christian but one who accepts that doctrine in faith and love.

To receive a mark means, symbolically, to be acknowledged as a Protestant Reformed Christian, or to be among those who confess what the doctrine teaches. The mark is an acknowledgement that the person is such a one, and also a confession that he is such. The right hand symbolizes everything in a person relating to the power of his intellect, thus to his faith; for the right hand symbolizes a person's power (no. 457). The forehead symbolizes everything in a person relating to the power of his will, thus to his love; for the forehead symbolizes love (no. 347).