After an hourlong debate, the Senate voted 32-17 in favor of the weakened constitutional ban, which had encountered many ups and downs over six weeks.
Some conservatives who had fought for the constitutional ban for years weren't all that happy with its passage because it didn't include original language that also would have banned civil unions. The House removed that provision last month.
After a weekend Twitter tirade that in part blamed inactive churches for the weakened ban, Sen. Mike Delph announced at a news conference that he was voting against it because it was too watered down.
"For my faith and plain-spokenness, I make no apologies," Delph said.
Opponents were pleased it didn't include the broader ban but still saw the measure, known as House Joint Resolution 3, as a form of discrimination against gays and lesbians.
"We have the opportunity to make history today by puttting an end to HJR-3 once and for all," Democratic Leader Tim Lanane of Anderson urged the Senate. "Time is not on the side of discrimination."
Despite Monday's favorable vote, the measure will not go on the November ballot as supporters, such as Gov. Mike Pence, had hoped.
