In communication, there are at least two parties and usually it is a two-way communication.
In a good communication, one speaks and the other listens, and vice versa.
When God communicates with His creation, He always take the first initiative.
In the 1st reading, God uses the image of the rain and the snow to show the effect of His Word.
The rain and snow come down from the heavens and water the earth, making it yield and giving growth to provide seed for the sower and bread for the hungry.
Likewise God’s Word goes forth from His mouth and it waits for a response from us.
Jesus, the Word of God, came to teach us how to respond to God.
In teaching us the prayer of the “Our Father”, we respond to God.
We tell God what we are going to do and that we will bear fruit, just like the earth bore fruit when it received the rain and snow.
The fruit that God is looking for is the fruit of forgiveness.
God forgave us our sins and we are to do likewise.
If we say we pray, then let the fruit of that prayer be forgiveness.