Hosea 12:6

‘Therefore turn you to your God, maintain covenant love and justice, and wait for your God continually.'

He calls on Israel to turn themselves to their God in repentance and submission (compare Paul's to the Thessalonians, ‘you turned to God from idols to serve the living and true God' - 1 Thessalonians 1:9), following this up by maintaining covenant love and justice, and waiting on God continually. Even at this last moment they were being given the opportunity to repent. But it had to be a deep seated repentance that went right to the heart and resulted in true worship in accordance with the Law, and deep-seated justice, not the shallow kind of ritual in which they were indulging. It required a full and loving response to the covenant, revealing a true and demonstrative love towards YHWH and towards their fellow covenanters.

Furthermore it also indicated that even if they did not respond now there would always be a way back in the future for the remnant who remained. God was leaving a permanent way open for them whenever they would repent. It was an offer that would later be taken up by the followers of Jesus and by those who came after them.