'The thirteenth year' in Genesis 14:4 signifies the beginning of the Lord's temptations in childhood.

In Genesis 17:25, this signifies a state of holy remains.

(Odkazy: Arcana Coelestia 2109)

2109. 'A son of thirteen years' means sacred remnants. This becomes clear from the meaning of 'ten' as remnants, dealt with already, in 576, 1988, and from the meaning of 'three' as that which is sacred, dealt with in 720, 901. Consequently the number thirteen, being the sum of ten and three, means sacred remnants. That numbers in the Word mean real things, see 482, 487, 488, 493, 575, 647, 648, 755, 813, 893. What the remnants residing with man are has been stated in 468, 530, 561, 660, 1050, 1906.