8935. 'An altar of soil you shall make for Me' means something which in a general way represents worship that springs from good. This is clear from the meaning of 'an altar' as the chief representative of the Lord and consequently of the worship of Him, dealt with in 921, 2777, 2811, 4489, 4541; and from the meaning of 'soil' or 'the ground' as good. The reason why 'the ground' stands for good is that a Church which abides in good is meant by 'the ground', 566. This is why Adam was said to be formed from the ground, at Genesis 2:7; 3:19; for one who belonged to the celestial Church, that is, the Church itself abiding in good, was meant by him, 478, 479. Since there are two entities that inspire worship of the Lord - goodness and truth - worship springing from good was represented by an altar of soil, while worship springing from truth was represented by an altar of stones. Both kinds of altars are the subject here; and those two entities that inspire worship are called faith and charity. Worship springing from truth has connection with faith, and worship springing from good has connection with charity.

[2] As regards worship inspired by faith and worship inspired by charity, or that which springs from truth and that which springs from good, the situation is that before a person has been regenerated his worship consists of truth, but after he has been regenerated it consists of good. Before a person has been regenerated he is led by means of truth to good, that is, by means of faith to charity; but when he has been regenerated he abides in good and consequently in truth, that is, in charity and consequently in faith, 8516, 8539, 8643, 8648, 8658. These two kinds of worship are what the altars of soil and of stone represent. The reason why the altar is the chief representative of worship of the Lord is that burnt offerings and sacrifices were offered on it; and it was in these that the worship of God by the Hebrew nation, and subsequently by the Israelite and Jewish nation, chiefly consisted, 923, 1343, 2180, 2805, 2807, 2830, 3519, 6405.

2811. 'And Abraham built the altar there' means preparation of the Lord's Divine human. This is clear from the meaning of 'the altar' and of 'building the altar'. Altars used to mean all worship in general because they were the chief feature of the worship of the representative Church, 921. And because they meant all worship in general they meant the Lord's Divine Human, for the Lord's Divine Human is essentially present in all worship and all doctrine, so much so that it is the very essence of worship itself and doctrine itself. This becomes clear also from the Holy Supper which superseded altars, that is, burnt offerings and sacrifices, 2165, 2187, 2343, 2359. The Holy Supper is the chief feature of external worship because it is the Lord's Divine Human that is bestowed there. From all this it may become clear, and so without further explanation, that 'building an altar' means preparing the Divine human. The final preparation of the Lord's Divine human for undergoing the last degrees of temptation is the subject in the present verse and is described by the statement that Abraham laid the pieces of wood in order, bound Isaac his son, and laid him on the altar, upon the pieces of wood.