en_tn/jer/01/02.md

The word of Yahweh came to him

This idiom is used to announce that God gave messages to him. Alternate translation: "Yahweh gave messages to him" or "Yahweh spoke to Jeremiah" (See: rc://en/ta/man/translate/figs-idiom)

Yahweh

This is the name of God that he revealed to his people in the Old Testament. See the translationWord page about Yahweh concerning how to translate this.

in the days of Josiah son of Amon, king of Judah

Here "in the days of" is an idiom that refers to the time when a king reigned. Alternate translation: "when Josiah son of Amon was king of Judah" (See: rc://en/ta/man/translate/figs-idiom)

the thirteenth

The word "thirteenth" is the ordinal form of "13." (See: rc://en/ta/man/translate/translate-ordinal)

Amon

This is the name of a man. (See: rc://en/ta/man/translate/translate-names)

his reign

"Josiah's reign"