What are "To'avosav"?
'Rashi': He had Bi'ah with his mother. Kli Yakar (Melachim II, 24:5, from Vayikra Rabah 19:6) ? and with his daughter-in-law, mother-in-law and his father's wife.
What is "veha'Nimzta Alav"?
'Rashi': Tattoos.
Sanhedrin 103b #1: He engraved the name of idolatry on his Ever.
Sanhedrin 103b #2: He engraved Hashem's name on his Ever.
Kli Yakar (Melachim II, 24:5, from Vayikra Rabah 19:6): He wore Sha'atnez, or stretched his foreskin to conceal his Bris Milah.
Malbim: Everything found in Seforim from the stories about him [is written in Sefer Malchei Yisrael].
Sefer Melachim does not detail his sins. It says only that he did evil in Hashem's eyes (Melachim II, 23:37)!
Radak: Our verse refers to Sefer Yirmeyah. The Parshah "Havi Boneh Beiso 1 " discusses his Aveiros.
Yirmeyah 22:13. (The verses there do not discuss Yehoyakim until verse 18, and then it discusses his punishments, but not his Aveiros! Here Radak said that "Sefer Malchei Yisrael vi'Yehudah" is Yirmeyah. Why did he say in Melachim II, 24:5 that Yirmeyah is called there "Sefer Divrei ha'Yamim l'Malchei Yehudah"? This requires investigation. ? PF)
