Lévitique 23:20

והניף הכהן אתם... תנופה AND THE PRIEST SHALL WAVE THEM [WITH THE BREAD OF THE FIRSTLINGS] FOR A WAVE OFFERING — This teaches us that they (the offerings) require the waving whilst they are still living. One might think that all of them (the seven lambs mentioned in v. 18) have to be waved! It, however, states על שני כבשים “[and the priests shall wave them… upon the two lambs]” (cf. Menachot 62a). קדש יהיו THEY SHALL BE HOLY [TO THE LORD FOR THE PRIEST] — Because festival-offerings offered by a private person are holy only in a minor degree, Scripture was compelled to state of the festival-offerings of the community that they are holy in the highest degree.

וְהֵנִ֣יף הַכֹּהֵ֣ן ׀ אֹתָ֡ם עַל֩ לֶ֨חֶם הַבִּכֻּרִ֤ים תְּנוּפָה֙ לִפְנֵ֣י יְהֹוָ֔ה עַל־שְׁנֵ֖י כְּבָשִׂ֑ים קֹ֛דֶשׁ יִהְי֥וּ לַיהֹוָ֖ה לַכֹּהֵֽן׃

And the priest shall wave them with the bread of the firstfruits for a wave offering before the Lord, with the two lambs: they shall be holy to the Lord for the priest.