Deuteronomy 1:20

And I said unto you, Ye are come unto the mountain of the Amorites, which the LORD our God doth give unto us.

Moses was telling Israel that they had come to the mountain country of the Amorites at the borders of the promised land that the Lord their God was giving them. The land was set before them by God as His gift, with the command to go up and possess it without fear or discouragement. The verse belongs to Moses' rehearsal of Israel's experiences, including their failures and victories, before they took possession of Jericho.

The promise to give the land was upon condition of obedience, doing His judgments and keeping His ordinances and statutes. The whole first chapter shows why the adults of the army that left Egypt were refused entrance into it, and Deuteronomy 28 sets out the same conditional terms of obedience and disobedience. Israel failed that condition by discouragement and by not wholly following the Lord. Their refusal to enter after the spies returned with an alarming report was rebellion against God's command and disbelief despite His promise and past care, so the Lord altered His purpose toward them and shut that generation out of the land.

The verse stands as part of the words of the Lord in Deuteronomy 1 and 8, to be read with Deuteronomy 7, written for the admonition of those on whom the ends of the world are come. It calls for learning the Lord's word and appreciating and obeying His voice with full following of His guidance. That means not following only to the point that agrees with human judgment and then holding fast to human ideas and refusing to be molded after the Lord's similitude. Everything is to be viewed in the light of Christ's example of self-denial and self-sacrifice, copying Him who is the truth and looking to His merits for His glory of character, living not to please self, because human standards are feeble reeds and the Lord's standard is perfection of character.