I think Jesus must have had Psalm 1:3-4 in mind when He said,
I am the vine; you are the branches. Whoever abides in me and I in him, he it is that bears much fruit, for apart from me you can do nothing. If anyone does not abide in me he is thrown away like a branch and withers; and the branches are gathered, thrown into the fire, and burned. (John 15:5-6)
Jesus and the author of Psalm 1 describe two types of people, those who abide in the Lord and bear fruit, and those who dry up because they reject fellowship with the Lord. He is the Source of power, of energy, of nutrients. We are branches that receive these things, and our ministry only bears fruit when we abide in Him.
Fruit in ministry does not depend on our performance, obedience, or cleverness. Fruit comes from connection to Christ.
The person in Psalm 1 is blessed and fruitful because he sinks his roots into the Word of God, all the time. And Jesus, the Word, invites us to hang out with Him, all the time. I know other things often seem more urgent. But think of this: The Creator of the universe actually wrote to you for a purpose: to nourish you and equip you to do things you never could on your own.
I need that nourishment desperately. How about you?