Luke 8:8

8:8 But other seed fell on good soil and grew, and it produced a hundred times as much grain.” As he said this, he called out, “The one who has ears to hear had better listen!”

Luke 8:14-15

8:14 As for the seed that fell among thorns, these are the ones who hear, but as they go on their way they are choked by the worries and riches and pleasures of life, and their fruit does not mature. 8:15 But as for the seed that landed on good soil, these are the ones who, after hearing the word, cling to it with an honest and good heart, and bear fruit with steadfast endurance.

Luke 13:19

13:19 It is like a mustard seed that a man took and sowed in his garden. It grew and became a tree, and the wild birds nested in its branches.”

Luke 17:6

17:6 So the Lord replied, “If you had faith the size of a mustard seed, you could say to this black mulberry tree, ‘Be pulled out by the roots and planted in the sea,’ and it would obey you.