שַׁתּ֣וּ בַשָּׁמַ֣יִם פִּיהֶ֑ם וּ֝לְשׁוֹנָ֗ם תִּֽהֲלַ֥ךְ בָּאָֽרֶץ׃
Mereka menujukan mulut mereka melawan langit, dan lidah mereka berkeliaran di bumi.
Radak
They set The emphasis, in place of the implication that they spoke about me and my late father with contempt, is explained as the doubling of the root "שתת" (to set or place), meaning their mouths were set in motion as if speaking in the heavens, indicating that they speak about God without knowledge of Him.
Radak
And their tongue walks in the land. In other words, their actions and words, which are carried out on Earth, are observed by Heaven.