Greetings this was an excellent question!
I would have to say there are four:
David: the many trials and despondent times he experienced, his failures, his sins....his heartfelt trust and love towards God no matter what!
Jeremiah: for sure, called to be a watchman, single, rejected of men everywhere, and his single mindedness to the Lord's call for his life.
The Apostle John: This scripture says it all for me; because he was listening to the heart of the living God......
Joh 13:23 Now there was leaning on Jesus' bosom one of his disciples, whom Jesus loved.
And finally Paul: To know the Will of God......"Oh....that "I MAY KNOW HIM"
Eph 5:9 (For the fruit of the Spirit is in all goodness and righteousness and truth
Eph 5:10 Proving what is acceptable unto the Lord.
Php 3:10 That I may know him, and the power of his resurrection, and the fellowship of his sufferings, being made conformable unto his death;
The Lord bless you....
In His Eternal Love.....