Passage
He will not allow your foot to be moved. He who keeps you will not slumber.
He will not allow your foot to be moved. He who keeps you will not slumber.
Psalms 121:1 I will lift up my eyes to the hills. Where does my help come from?
Psalms 121:2 My help comes from Yahweh, who made heaven and earth.
Psalms 121:3 He will not allow your foot to be moved. He who keeps you will not slumber.
Psalms 121:4 Behold, he who keeps Israel will neither slumber nor sleep.
Psalms 121:5 Yahweh is your keeper. Yahweh is your shade on your right hand.
The verse centers on "allow", "foot", "moved", "keeps", and "slumber". It is saying that the verse draws attention to "allow" and "foot", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 2's "My help comes from Yahweh who made..." into verse 4's "Behold he who keeps Israel will neither...", so "allow" and "foot" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "allow" and "foot" with trust shaped by these words, not by a vague optimism outside the passage.