Couples in the U.S. are increasingly choosing to live together outside of marriage — and Baby Boomers represent the fastest-growing segment of the cohabiting population.

According to a recent report from Pew Research Center, the number of cohabiters age 50 and older rose 75 percent between 2007 and 2016.

Approximately half of the 18 million cohabiting Americans are under age 35. However, those 50 and older now make up nearly a quarter of unmarried partners.

Most older cohabiters were previously married, and more than 55 percent are divorced. Their growing numbers reflect the rising Baby Boomer divorce rate, the Pew report says. The divorce rate among Americans age 50 and older has roughly doubled since the 1990s.

Such living arrangements are sinful in practice and unacceptable to God.

By contrast, previously married individuals represent just 3 percent of cohabiters aged 18 to 24; 15 percent of cohabiters aged 25 to 34; and 48 percent of those from 35 to 49.

Among cohabiters 50 and older, 57 percent are in their 50s. About 30 percent are in their 60s, 10 percent are in their 70s, and 3 percent are 80 or older.

According to a statement endorsed by the Assemblies of God Commission on Doctrinal Purity and the Executive Presbytery, Scripture forbids cohabiting at any age.

“Such living arrangements are sinful in practice and unacceptable to God as they lack the seal of lifelong commitment before God and as such constitute fornication,” the statement says. “Couples living together, but unmarried should be instructed in the Bible’s teaching on marriage and guided to observe God’s law in forming a monogamous lifelong marriage covenant in Him.”