Arcana Coelestia # 3334
3334. 'And he rose up' means a consequent raising up. This is clear from the meaning of 'rising up' wherever it is used, as embodying a raising up, dealt with in 2401, 2785, 2912, 2927. A person is said to be raised up when he is being perfected as regards spiritual and celestial things, that is, as regards truth which belongs to faith, and as regards good which belongs to love and charity, 3171.
Thirty
'Thirty' has a twofold significance because it is is the product of five and six, and also three and ten. From five multiplied by six, it signifies some aspect of combat, because 'five' signifies some part or aspect, and 'six,' combat. From three multiplied by ten, it signifies something full of remains of good and truth, because 'three' signifies fullness, and 'ten,' remains of good and truth. A composite number involves the same as the simple numbers it has as its factors.
(Odkazy: 2 Samuel 5:4; Arcana Coelestia 5335; Luke 3, 3:23, 23; Numbers 4:3, 4:23, 4:30)