As the law teaches, “You shall love the Lord your God with your whole heart and your whole soul.” But the person who puts his entire hope in the Lord also praises with his whole heart. He does not put his trust in the transient consolations of the world, once he has trained himself on the Lord with total purity of mind.
Then the devil taketh him up into the holy city, and setteth him on a pinnacle of the temple, And saith unto him, If thou be the Son of God, cast thyself down: for it is written, He shall give his angels charge concerning thee: and in their hands they shall bear thee up, lest at any time thou dash thy foot against a stone. Jesus said unto him, It is written again, Thou shalt not tempt the Lord thy God. [Deuteronomy 6:16]
And he brought him to Jerusalem, and set him on a pinnacle of the temple, and said unto him, If thou be the Son of God, cast thyself down from hence: For it is written, He shall give his angels charge over thee, to keep thee: And in their hands they shall bear thee up, lest at any time thou dash thy foot against a stone. And Jesus answering said unto him, It is said, Thou shalt not tempt the Lord thy God. [Deuteronomy 6:16] And when the devil had ended all the temptation, he departed from him for a season.
[AD 585] Cassiodorus on Deuteronomy 6:10-19