Jessie James Decker/Instagram
Eric, 35, penned a touching tribute to the singer, 34, on Instagram Wednesday, alongside a picture of the pair snuggling up to one another on the beach.
"Happy Anniversary Mi Amor❤️ I love this life with you! So many adventures and beautiful memories we have created together. You have stood by my side through the good and the bad. You are my lover, best friend and soulmate! 9 years down and a lifetime to go 🥰😜 Cheers to us 🥂," he wrote.
The former NFL player also shared a collage of throwback pictures, which featured the longtime couple – who met in 2011 through mutual friends – throughout their relationship.
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The country singer marked the occasion on her own Instagram account with two sweet videos in which she flipped through their wedding book, showing stunning photos from their 2013 nuptials.
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This isn't the only milestone the couple has recently celebrated.
In March, Eric marked his 35th birthday with a trip to Mexico, while Jessie celebrated the occasion by posting a sexy photo of him, noting that her husband looked "like a statue from Greece" while he posed in his "birthday suit."
"My man is 35 and aging like fine wine. Happy happy birthday to the love of my life, my best friend, my soulmate, my baby daddy, my ride or die. I'm so happy you were born today. I sure do I love growing old with you 🥰 #whathappensincabo #whathappenswhenthekidsareatkidsclub #birthdaysuit," she captioned the picture.