"Today might be hard for some. I know it was for me for years but forgiveness, understanding and growth is a beautiful thing," Jana Kramer wrote on Instagram Sunday

Advertisement

Jana Kramer is speaking out on Father's Day amid her split from estranged husband Mike Caussin.

On Sunday, the actress and country singer shared a religious sentiment on Instagram, alongside an image that read, "GOD / The Ultimate Father / Happy Fathers Day."

"Today might be hard for some. I know it was for me for years but forgiveness, understanding and growth is a beautiful thing," wrote Kramer, 37. "Here's one that I've learned though and was talked about in church today. God is a father that will never leave you, will always love you no matter what. He will always be there to listen and to love you. Let him love you."

Kramer shares son Jace Joseph, 2½, and daughter Jolie Rae, 5, with Caussin, 34. She marked what would've been her sixth wedding anniversary with the former NFL player in May, just weeks after the pair announced their decision to split the previous month.

Jana Kramer
Jana Kramer
| Credit: Gary Gershoff/Getty Images

Sharing a photo of herself throwing her hands up in the air while on a boat in a tropical locale, Kramer began the caption of her post, writing, "Free. And not looking back."

Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday.

Jana Kramer Instagram
Jana Kramer's Instagram Story
| Credit: Jana Kramer Instagram

"I thought not celebrating 6 years today would feel heavy and sad .... and though there is sadness in the broken, there is more joy, happiness, freedom and self love than I've ever experienced," she continued at the time.

"The weight has been lifted and I welcome the unknown, because there is so much beauty in what's next," the One Tree Hill alum added. "Find your strength and set yourself free ... "

On April 21, Kramer announced in an emotional Instagram post that she and Caussin were separating.

"'It's time.' As I try to make sense of a reality I never wanted to believe could be possible again, those words have now become a reality," the mom of two wrote. "I've fought y'all. I've loved hard. I've forgiven. I've put the work in. I've given everything I have, and now I have nothing else to give."

RELATED VIDEO: How Jana Kramer Taps into Her Strength During 'Hard Days': 'It's Okay to Feel All the Feels'

"Please know that I still believe wholeheartedly in marriage, love, and rebuilding. I just can't fight any longer. It's time to heal," Kramer continued. "Thank you for all the love, heart, and support, in many ways you have fought on this journey alongside me, and for that I am grateful."

She added, "I'll always encourage you to continue the good fight, but you can't fight it alone."

In her Williamson County, Tennessee, divorce filing, which was previously obtained by PEOPLE, Kramer cited "inappropriate marital conduct, irreconcilable differences and adultery" as grounds for divorce from Caussin.

Also in the filing, Kramer requested the court uphold a postnuptial agreement they had made after getting married and that she has primary custody of their son and daughter, with allowed visitation times with Caussin.