Timothy Edwards was the father of the infamous theologian, Jonathan (1703-1758).  Timothy thought highly of his own father, Richard, and said of him,

"In the presence of God, he appeared not only to believe but to delight...in prayer he seemed to draw very near to God...His feelings on religious subjects were at once strong and tender."

Grandson of Richard, Jonathan himself seemed particularly concerned with delighting in God.  I wonder how much of his grandfather's influence helped create this passion in the great theologian, who also passed on his passion for God's glory to his children and succeeding generations. 

I wonder how much of your passion and influence will carry over to your grandchildren even if they're not yet born.  I want to pass on a passion for the triune God so that my children easily pass it on to their friends and offspring.  By the grace of Christ, may our passion for his glory grow so our ancestors partake of the same pleasure in God.

Based on my readings from Iain Murray's, Jonathan Edwards: A New Biography, p5.