NET
1 Josiah observed a Passover festival for the Lord in Jerusalem. They slaughtered the Passover lambs on the fourteenth day of the first month.
Darby
1 And Josiah held a passover to Jehovah in Jerusalem; and they slaughtered the passover on the fourteenth of the first month.
KJV
1 Moreover Josiah kept a passover unto the LORD in Jerusalem: and they killed the passover on the fourteenth [day] of the first month.