> it always feels paradoxical when leaders wax poetic about the mystery of God and then say 'so here is what God thinks you should do.' How could they know?
Perhaps we were told it:
> "Teacher, which commandment in the law is the greatest?" He [Jesus] said to him, "'You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.' This is the greatest and first commandment. And a second is like it: ‘You shall love your neighbor as yourself.’ On these two commandments hang all the law and the prophets."
Perhaps we were told it:
> "Teacher, which commandment in the law is the greatest?" He [Jesus] said to him, "'You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.' This is the greatest and first commandment. And a second is like it: ‘You shall love your neighbor as yourself.’ On these two commandments hang all the law and the prophets."
* https://en.wikipedia.org/wiki/Great_Commandment
Which is taken from the Torah. See also:
* https://en.wikipedia.org/wiki/Sermon_on_the_Mount
* https://en.wikipedia.org/wiki/The_Sheep_and_the_Goats
* https://en.wikipedia.org/wiki/Parable_of_the_Good_Samaritan
The leaders are probably just reiterating/reminding people.