In Luke 8:15, Jesus speaks of the seed of God's word that falls on rich soil: "They are the ones who, when they have heard the word, embrace it with a generous and good heart, and bear fruit through perseverance": 

1.     A committed heart embraces God's word (God's will) with a generous and good heart (committed) 

2.     A persevering heart bears good fruit (sustained) 

3.     An informed heart hears the word of God (informed) 

Committed:

The root meaning of the word, commit, is "to send". The Father sent His Son into the world as Saving Love. Coming into the world, Jesus pledged--obligated--himself to fulfill the Father's saving will: "A Body you prepared for me…Behold, I come to do your will, O God" (Heb. 10:5,7). This will encompasses a love so great that it becomes en-fleshed in a cause: My Father… Your will be done" (Mt. 26:42). The lifestyle of an intercessor must witness to and serve the mystery of Redemption by our love, our prayer, our victim-hood, and our generosity with the same dedication and zeal as Jesus. 

Sustained:

In Romans 12:12 St. Paul exhorts, "Persevere in prayer". Intercessors must be formed both with the enduring love and the resolute determination of the Lamb of God in the world--to pray until a breakthrough comes--always remembering that "Love never fails" (1Cr. 13:8). With arms outstretched and heart fully engaged, Jesus persisted in prayer and offering on the 'altar of the cross'. All authentic and effective intercessory prayer flows from and is united to the unique mediation of the Lamb of God on the cross. Our intercession continues--perpetuates--the crucified Love of Jesus in the world. We are to persevere in our prayer with a warrior's resolve, suffer with patience, and always live in the vitality of the victory of the Lamb: 

"Upon your walls, O Jerusalem, I have stationed watchmen; Never, by day or by night, shall they be silent. O you who are to remind the Lord, take no rest and give no rest to him, until he re-establishes Jerusalem and makes of it the pride of the earth" 

(Is. 62:6-7). 

Informed:

"Speak, for your servant is listening" (1 Sam. 3:10). Jesus is always the Lamb who is led by the Holy Spirit: "The Spirit of the Lord God is upon me, because he has anointed me" (Is. 61:1, cited in Luke 4:18).  In his public ministry, Jesus was always informed so as to know what to say, what to pray for in any given situation, and how to pray: "What I say I say as the Father told me" (John 12:50); "I have told you everything I have heard from my Father" (John 15:15); "It is written in the prophets: 'They shall all be taught by God'" (John 6:45); "The Spirit of truth…He will not speak on his own, but he will speak what he hears, and will declare to you the things that are coming" (John 16:13). The source from which Jesus draws his life is, 'Father, Your will be done'. The most important thing is that what God wants should be prayed for and come to pass. Jesus knew no other rule of life--neither should we as intercessors:  

"I will stand at my guard post, 

 and station myself upon the rampart, 

And keep watch to see what he will say to me,  

And what answer he will give to my complaint.  

Then the LORD  answered me" 

(Ha. 2:1-2). 

This is the role of an intercessor!