Arcana Coelestia #36
36. People who have separated faith from love do not even know what faith is. When they do entertain an idea about faith, some of them see it only as mere thought, others as thought directed towards the Lord, and a few as the doctrine of faith. But faith involves not only knowledge of all the things that the doctrine of faith embraces and the acknowledgment of them; it is first and foremost obedience to everything that doctrine teaches. The primary point that it teaches for men's obedience is love of the Lord and love of the neighbour. Whoever is devoid of this is devoid of faith, a point which the Lord teaches so plainly in Mark as to leave absolutely no room for doubt,
The first of all the commandments is, Hear, O Israel, the Lord our God is one Lord. Therefore you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength. This is the first commandment. The second is also like it, You shall love your neighbour as yourself. There is no other commandment greater than these. Mark 11:28-33.
In Matthew, He calls the former 'the first and great commandment', and says 'on these commandments the Law and Prophets depend', Matthew 22:35-40. The Law and the Prophets are the doctrine of faith in its entirety and the whole of the Word.
Mark 11:28-33
28
and they began saying to him, "By what authority do you do these things? Or who gave you this authority to do these things?"
29
Jesus said to them, "I will ask you one question. Answer me, and I will tell you by what authority I do these things.
30
The baptism of John--was it from heaven, or from men? Answer me."
31
They reasoned with themselves, saying, "If we should say, 'From heaven;' he will say, 'Why then did you not believe him?'
32
If we should say, 'From men'"--they feared the people, for all held John to really be a prophet.
33
They answered Jesus, "We don't know." Jesus said to them, "Neither do I tell you by what authority I do these things."
