In Isaiah 49:10, this signifies knowledge of truth from the Word. (Arcana Coelestia 8568[7])

In Genesis 49:22, this signifies the abundance of truth from the Word. (Arcana Coelestia 6418)

In Isaiah 41:18, this signifies to fill the natural with truths. (Apocalypse Explained 304[21])

In Hosea 13:15, this signifies doctrine destroyed, and fountain signifies the Word. (Apocalypse Explained 730[12])

A fountain, as in Psalm 104:10, denotes knowledges.

(Odkazy: Apocalypse Revealed 360, 384; Revelation 7, 16, 16:7)

6418. 'The son of a fertile one beside a spring' means the fruitfulness of truth from the Word. This is clear from the meaning of 'the son' as truth, dealt with in 489, 491, 533, 2623, 2803, 2813, 3773, 3704; from the meaning of 'a fertile one' as the fruitfulness of truth, for fertility, like bearing and birth, applies in the spiritual sense to truth and good, 1145, 1255, 3860, 3868, 4070, 4668, 5598; and from the meaning of 'a spring' as the Word, dealt with in 2702, 3424, 4861. From this it is evident that 'the son of a fertile one beside a spring' means the fruitfulness of truth from the Word. Those who belong to the Lord's spiritual Church, the Church represented here by 'Joseph', come to know what good is from truth received from the Word, and so are introduced into good by means of truth. Then follows the fruitfulness meant by 'a fertile one'.