That shameful thing - i. e., Baal; public establishment of idolatry, such as actually took place in the reign of Manasseh (2 Chronicles 33:3. Contrast 2 Kings 18:4).

For according to the number of thy cities were thy gods, O Judah,.... See Gill on Jeremiah 2:28,

and according to the number of the streets of Jerusalem; of which there were many, and some of note (i):

have ye set up altars to that shameful thing, even altars to burn incense unto Baal; one of whose names is Bosheth, "shame"; see Hosea 9:10, hence Jerubbaal is called, in 2 Samuel 11:21, Jerubbesheth; very properly is this name given to Baal, not only because the worship of him was to the reproach of the true God, but brought shame and confusion in the issue to its worshipper; as well as because shameful things were done in the worship of it, especially of Baalpeor; who seems to be the same with the Priapus of other nations.

(i) Vid. Lightfoot, Chorograph. Cent. ad Matt. p. 34.

{h} For according to the number of thy cities were thy gods, O Judah; and according to the number of the streets of Jerusalem have ye set up altars to that shameful thing, even altars to burn incense to Baal.

(h) Read Jer 2:28.

11:13 That shameful thing - Baal, called a shameful thing, because it was what they had reason to be ashamed of, and what would certainly bring them to shame and confusion. Baal - Signifies Lord, and was a common name given to more idols than one; the Phoenicians used the name Baal, the Chaldeans, Bell. Learned men say, that the Asians called the same idol Baal, whom those of Europe called Jupiter. It is not improbable, that the Heathens acknowledging one supreme being, worshipped him in several creatures; some mistaking the Sun, Moon, and Stars to be he, others, other things; these they called Baalim, Lords, as they called the principal god, Baal.

shameful...: Heb. shame

13. shameful thing-Hebrew, "shame," namely, the idol, not merely shameful, but the essence of all that is shameful (Jer 3:24; Ho 9:10), which will bring shame and confusion on yourselves [Calvin].

11:11-17 Evil pursues sinners, and entangles them in snares, out of which they cannot free themselves. Now, in their distress, their many gods and many altars stand them in no stead. And those whose own prayers will not be heard, cannot expect benefit from the prayers of others. Their profession of religion shall prove of no use. When trouble came upon them, they made this their confidence, but God has rejected it. His altar shall yield them no satisfaction. The remembrance of God's former favours to them shall be no comfort under troubles; and his remembrance of them shall be no argument for their relief. Every sin against the Lord is a sin against ourselves, and so it will be found sooner or later.