Verse 15. And thus preparation must be made; Divine Truth accommodated to the natural man must operate with power in the worship of the Lord according to the state, and thus the natural man must be purified; this purification must extend even to the sensual life of man; and thus the natural man must be brought into harmony with the spiritual.

2805. 'Where is the animal for a burnt offering?' means, Where are those members of the human race who are to be sanctified? This is clear from the representation of sacrifices, in particular burnt offerings. Burnt offerings and sacrifices were representative of internal worship, see 922, 923; they were made from the flock and from the herd - when from the flock, lambs, sheep, she-goats, kids, rams, or he-goats were used, when from the herd, oxen, young bulls, or calves, all of which meant various kinds of celestial and spiritual things - see 922, 1823, 2180; and by means of them people were sanctified, 2776. From all this it may become clear that Isaac's question, 'Where is the animal for the burnt offering?' means, Where are those members of the human race who are to be sanctified? The same is more plainly evident from what comes next, that is to say, from the reply made by Abraham his father, 'God will see for Himself to the animal for a burnt offering', verse 8, which means that the Divine Human will provide those who are to be sanctified; from the fact that later on he saw a ram behind him caught by its horns in a thicket, and offered that as the burnt offering, verse 13, which means members of the human race who belong to the Lord's spiritual Church; as well as from the details that follow after this in verses 14-17.