“Mark my words”in other languages

Same idea, different pictures

Dutch knots it into your ears, iets in je oren knopen. Russian notches it on your nose, зарубить на носу; the usual explanation is that нос here was a tally stick, carved with notches to keep a record.

There's a small difference in use. The Dutch and Russian phrases mean “remember this well”. English usually adds a prediction: remember what I said, because it will come true.