The letter seems Kendra's way of showing appreciation for the family trips they have been taking.
"THANK YOU for always bringing us to other countries & thank you for always letting us have fun!" wrote the 10-year-old daughter of Doug and Cheska Garcia.
"I LOVE YOU GUYS SO MUCH!!!"
She also promised to try "to be more closer to God and to the Lord."
Reading the letter, Doug was happy to see the kind of person Kendra is growing up to be.
The proud dad wrote, "There are just some things you can't measure.
"In one small letter Kendra gave us, you can already see the kind of person she is growing into. You can see her appreciation, kindness, affection, lots of LOVE, her desire to please the Lord and getting to know Him even more."
The PBA star was reminded of the responsibilities parents have toward their kids.
"Our prayer as parents is to continue to guide our kids properly and to make sure that they will be ready when life's storms come their way.
"And that our prayer is not just to keep us all safe, but for God to guide us through life's trials. It's inevitable."
For Doug, having quality time with his kids Kendra, Scarlett, and Gavin is the key to guiding them properly.
"As a father to our three little kids, may you always see how important it is to spend time with your kids. Spend as much time as you can with them.
"They will follow you more than what you tell them to do. You should be their prime example. So we have to live it every day. Time is Love."
The celebrity dad ended his post with a Bible quote:
"'Train up a child in the way he should go,
"And when he is old he will not depart from it.'"