Sefer HaBahir 6

1[Rabbi Rachumai continued,] "And what is a 'blessing'? To what parable is this comparable? To a king that plants trees in his garden, and even though rain always comes down and waters [them], and the land is damp and constantly waters them, still, he needs to water the trees from the spring. As it is said, 'The beginning of wisdom is the fear of YHVH, good intelligence to all who do them' (Psalms 111:10). And lest you say that it lacks something, it continues, 'His praise stands forever' (Psalms 111:10)."