וּפֵרַ֤שׂ יָדָיו֙ בְּקִרְבּ֔וֹ כַּאֲשֶׁ֛ר יְפָרֵ֥שׂ הַשֹּׂחֶ֖ה לִשְׂח֑וֹת וְהִשְׁפִּיל֙ גַּֽאֲוָת֔וֹ עִ֖ם אָרְבּ֥וֹת יָדָֽיו׃
Y extenderá su mano por en medio de él, como la extiende el nadador para nadar: y abatirá su soberbia con los miembros de sus manos:
Rashi on Isaiah
And he shall spread out his hands (וּפֵרַשׂ) He shall break his hands and his arms by clapping his hands in weeping.
Ibn Ezra on Isaiah
And he shall spread forth. The Lord shall spread forth. In the midst of them. In the midst of Moab.
Rashi on Isaiah
the swimmer (הַשׂחֶה) the one who floats upon the water.