This verb, of uncertain etymology, likely means to divide or mark out divisions. Isaiah 47:13 uses it in a sarcastic address to Babylon's astrologers: 'Let them stand and save you, those who divide the heavens, who gaze at the stars.' The Qere/Ketiv variants show textual uncertainty, but the context suggests dividing the heavens refers to the zodiac or other astrological divisions. The passage mocks Babylon's dependence on stargazers who carve up the sky seeking omens but cannot save from God's judgment.