Final answer:
Amos and Hosea were prophets who preached to the northern kingdom of Israel in the 8th century BCE, focusing on themes of social justice, repentance, and God's love.
Step-by-step explanation:
The prophets Amos and Hosea were both active in the 8th century BCE and delivered their messages to the northern kingdom of Israel, which is also sometimes referred to as Ephraim or Samaria in the Biblical texts. Amos, who was from Tekoa in Judah, focused his prophecies on the social injustices and moral failings of the society, calling for repentance and social justice while warning of divine punishment. Hosea's message was similar in its call for repentance but also dealt with the theme of God's enduring love for Israel despite the people's infidelity.
The biblical verses you provided, Ezekiel 20:25 and Amos 3:6, though important in a biblical context, are not directly related to answering the question of whom Amos and Hosea preached to. However, they do represent the type of messaging and themes common in prophetic texts, such as the consequences of disobedience to God's commands and the divine control over events.