Passage
Now it will be, if you ever forget Yahweh your God and walk after other gods and serve them and worship them, I testify against you today that you will surely perish.
Now it will be, if you ever forget Yahweh your God and walk after other gods and serve them and worship them, I testify against you today that you will surely perish.
Deuteronomy 8:17 lest you say in your heart, ‘My power and the might of my hand made me this wealth.’
Deuteronomy 8:18 But you shall remember Yahweh your God, for it is He who is giving you power to make wealth, that He may confirm His covenant which He swore to your fathers, as it is this day.
Deuteronomy 8:19 Now it will be, if you ever forget Yahweh your God and walk after other gods and serve them and worship them, I testify against you today that you will surely perish.
Deuteronomy 8:20 Like the nations that Yahweh makes to perish before you, so you shall perish, because you would not listen to the voice of Yahweh your God.
The verse centers on "ever", "forget", "yahweh", "walk", "after", "other", "gods", and "serve". It is saying that the verse draws attention to "ever" and "forget", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "But you shall remember Yahweh your God..." into verse 20's "Like the nations that Yahweh makes to...", so "ever" and "forget" belong inside that flow. In Deuteronomy context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "ever" and "forget" with trust shaped by these words, not by a vague optimism outside the passage.