Numbers 25:1

And Israel abode in Shittim, and the people began to commit whoredom with the daughters of Moab.
— Numbers 25:1, King James Version

In other translations

World English Bible (WEB)

Israel abode in Shittim; and the people began to play the prostitute with the daughters of Moab:

American Standard Version (ASV)

And Israel abode in Shittim; and the people began to play the harlot with the daughters of Moab:

Young's Literal Translation (YLT)

And Israel dwelleth in Shittim, and the people begin to go a-whoring unto daughters of Moab,