Luke 2:41 (KJB)
“Now his parents went to Jerusalem every year at the feast of the passover.”
Context, context, context
K.J.B.
“Now his parents went to Jerusalem every year at the feast of the passover. And when he was twelve years old, they went up to Jerusalem after the custom of the feast. And when they had fulfilled the days, as they returned, the child Jesus tarried behind in Jerusalem; and Joseph and his mother knew not of it” (Luke 2:41-43).
A.S.V.
“And his parents went every year to Jerusalem at the feast of the passover. And when he was twelve years old, they went up after the custom of the feast; and when they had fulfilled the days, as they were returning, the boy Jesus tarried behind in Jerusalem: and his parents knew it not” (Luke 2:41-43).
The KJB clarifies the ‘legal’ notion by showing that Mary is Jesus’ mother while the ASV changes the ‘familial’ to parents.