Jeremiah 19:2

2. valley of the son of Hinnom—or Tophet, south of Jerusalem, where human victims were offered, and children made to pass through the fire, in honor of Molech.

east gate—Margin, "sun gate," sunrise being in the east. MAURER translates, the "potter's gate." Through it lay the road to the valley of Hinnom (Joshua 15:8). The potters there formed vessels for the use of the temple, which was close by (compare Jeremiah 19:10; Jeremiah 19:14; Jeremiah 18:2; Zechariah 11:13). The same as "the water gate toward the east" (Nehemiah 3:26; Nehemiah 12:37); so called from the brook Kedron. CALVIN translates, as English Version and Margin. "It was monstrous perversity to tread the law under foot in so conspicuous a place, over which the sun daily rising reminded them of the light of God's law."