Rashi, Targum Yonasan: My heart is full of Nevu'ah, that Hashem's anger will come upon them.

Rashi: This is like Lehachil (to bear).

Radak: [It is hard for me] to contain [Hashem's anger at Yisrael]. Malbim - therefore, I must say the rebuke and punishments that He warned them. However, to whom should I speak?

Rashi: It is a nursing baby.

Shabbos 119b: Yerushalayim was destroyed because they stopped children from learning from their Rebbi. The anger was poured out because children were outside.

Radak: The anger will be poured [on nursing babies].

Malbim: Hashem answers Yirmeyah - spill the anger (the Nevu'ah that fills you, tell it?)

Rashi: It is in the market.

Radak: The enemy will kill babies outside, without mercy, and so the anger is spilled [outside].

Radak: Their strength will not help them. "Sod" is a group. They join together with one counsel, and it does not help.

Radak: A man with his wife.

Malbim: The father and mother of the baby and Bachur.

Rashi: It is one who is close to death. This is older than "Zaken".

Malbim: This is the great grandfather. "Zaken" is the grandfather.

Radak: They will not have mercy on [any of them, even] the elders.

Malbim: The entire family will be killed.