Leithart writes a great piece on the joyful parenting. He concludes:
As we look in hope to the peaceable fruit of righteousness that God says He will bring, the whole of our parenting is suffused with coming joy. Joy is eschatological, but in Christ we have entered into the new creation. Joy comes at the end, but since we are post-Pentecostal parents, we have received the Spirit of the age to come; we see the fullness of joy at a distance, but also know it now. The age to come has dawned, and as we parent in hope and faith its light already beams through our windows and fills our homes.