Korie Robertson is grateful for how her children are growing up

A candid photo of John Luke and Sadie walking side by side is posted on Korie Robertson’s Instagram account.(Instagram/Korie Robertson)

Korie Robertson, one of the stars of A&E's hit show "Duck Dynasty," is really feeling the blessings of motherhood now that she is seeing her children growing up and becoming kind-hearted individuals and God-fearing Christians who always have each other's backs.

On her Instagram account (@bosshogswife), she shared a candid photo of John Luke and Sadie walking side by side. She wrote, "So glad I captured this moment of these two walking and talking. Thankful for how our children are growing into not just siblings but best of friends. They encourage, challenge and cheer one another on. As a mama I couldn't ask for more."

The show's fans are crediting Korie for her children's good values and relationships. "Your good parenting has a lot to do with it. Congratulations on a job well done," someone said.

Another person noted that "the amazing thing is that with all the fame they have (they're) not all stuck up and stuff. Good kids."

Meanwhile, another fan commented that what Korie has seen in her children is "all a mama can ask for...I pray every day for my little ones to have that kind of bond when they are grown."

John Luke will be marrying Sadie's best friend Mary Kate McEacharn this June, and the Robertson family is eager to welcome Mary Kate as one of their own.

During Mary Kate's birthday this May, Korie even greeted her: "Happy Birthday to this fun-loving, sweet-spirited, kind-hearted, Jesus-following girl who I am so excited to soon call my daughter-in-love @missmarymcmcmc #ILoveYou #HappyBirthday"

For his part, John Luke earlier told E! News that he is pretty excited to marry his best friend, and he is looking up to his parents' marriage as an example.

"I know my parents married young as well, and they have always been examples of what 'could be' to me. Fast-forward 22 years and they are more in love than ever, and I hope Mary Kate and I are the same way in the years to come. God has truly blessed us," he said.