Penny Lancaster

Rod Stewart chronicles his life and loves on his reflective new album.

Rod Stewart isn’t known as one of rock’s deep thinkers. But that could change with Time (Capitol, $11), a philosophic album that shows there’s more to him than a great raspy voice and a rooster-comb bouffant.

Having survived thyroid cancer, two divorces and a litany of dubious wardrobe choices, the 68-year-old singer first had to overcome writer’s block to record his first album of original music in almost 20 years.

“I didn’t have any confidence in my songwriting,” Stewart says of the decade he spent recording pop standards. “I grew a bit lazy and just gave up.”

But he recaptured his spark while writing his 2012 book, Rod: The Autobiography, and began penning thoughtful songs about his family. “Can’t Stop Me Now” pays tribute to his late father, who encouraged him early on — even as music execs rejected him for his odd hair and sizable schnoz. The partly fictional “Brighton Beach” recalls the ill-fated teen romance that produced ­Stewart’s first child. “It’s Over” deals with his 2006 split from second wife Rachel Hunter.

Some of Time’s best songs find ­Stewart imparting wisdom to his children. He wrote “Live the Life” for Liam Stewart, his ­18-year-old son with Hunter and star of the Spokane Chiefs junior ice-hockey team. “Pure Love” speaks to all eight of his kids, whose ages range from 2 to 49.

“Hopefully it’ll bring a tear to their eyes, because it’s Dad’s little instruction on life,” he says. “Like most dads, I’ve become better as the years have gone on. But I still struggle with when to spoil a child and when to deprive them.”

Stewart wrote several tributes to his third and current wife, Penny Lancaster, the 42-year-old model and photographer who shot the CD’s cover. He describes one ode to Lancaster, “Sexual Religion,” as “maybe the 2013 version of ‘Da Ya Think I’m Sexy?’ ”

That’s a bold comparison, as “Sexy” was both a career high and low for Stewart. It topped the charts in 1979 but infuriated fans of his soulful early work, including Rolling Stone critic Greil Marcus, who famously wrote, “Rarely has anyone betrayed his talent so completely.”

“It was a good kick in the [rump] for me,” Stewart says of the barbs. “But I wouldn’t change anything in my life. It hasn’t been a bed of roses. But as I reflect on it, it’s been a wonderful life.”