Luke 2:50 in the World English Bible
They didn’t understand the saying which he spoke to them.
Context
49 And he said unto them, How is it that ye sought me? wist ye not that I must be about my Father’s business?
50 And they understood not the saying which he spake unto them.
51 And he went down with them, and came to Nazareth, and was subject unto them: but his mother kept all these sayings in her heart.