He that dwelleth in the secret place - The Targum intimates that this is a dialogue between David, Solomon, and Jehovah. Suppose we admit this, - then

David asserts: "He who dwelleth in the secret place of the Most High shall abide under the shadow of the Almighty," Psalm 91:1.

Solomon answers: "I will say of the Lord, He is my refuge and my fortress; my God, in him will I trust," Psalm 91:2.

David replies, and tells him what blessings he shall receive from God if he abide faithful, Psalm 91:3-13.

Then the Supreme Being is introduced, and confirms all that David had spoken concerning Solomon, Psalm 91:14-16 : and thus this sacred and instructive dialogue ends.

In the secret place of the Most High - Spoken probably in reference to the Holy of holies. He who enters legitimately there shall be covered with the cloud of God's glory - the protection of the all-sufflcient God. This was the privilege of the high priest only, under the law: but under the new covenant all believers in Christ have boldness to enter tnto the holiest by the blood of Jesus; and those who thus enter are safe from every evil.

This Psalm is supposed by some to have been composed by Moses on the same occasion as the preceding; but others think it was written by David, after his advice to his son Solomon.

1 Chronicles 28:1 And David assembled all the princes of Israel, the princes of the tribes...

dwelleth

Psalm 27:5 For in the time of trouble he shall hide me in his pavilion: in the secret of his tabernacle shall he hide me...

Psalm 31:20 You shall hide them in the secret of your presence from the pride of man...

Psalm 32:7 You are my hiding place; you shall preserve me from trouble; you shall compass me about with songs of deliverance. Selah.

Psalm 52:8 But I am like a green olive tree in the house of God: I trust in the mercy of God for ever and ever.

Psalm 61:3,4 For you have been a shelter for me, and a strong tower from the enemy...

Psalm 90:1 Lord, you have been our dwelling place in all generations.

Isaiah 8:14 And he shall be for a sanctuary; but for a stone of stumbling and for a rock of offense to both the houses of Israel...

Ezekiel 11:16 Therefore say, Thus said the Lord GOD; Although I have cast them far off among the heathen...

Hosea 14:5,6 I will be as the dew to Israel: he shall grow as the lily, and cast forth his roots as Lebanon...

1 John 4:15,16 Whoever shall confess that Jesus is the Son of God, God dwells in him, and he in God...

abide. Heb. lodge

Psalm 25:13 His soul shall dwell at ease; and his seed shall inherit the earth.

under

Psalm 17:8 Keep me as the apple of the eye, hide me under the shadow of your wings,

Psalm 36:7 How excellent is your loving kindness, O God! therefore the children of men put their trust under the shadow of your wings.

Psalm 57:1 Be merciful to me, O God, be merciful to me: for my soul trusts in you: yes, in the shadow of your wings will I make my refuge...

Judges 9:15 And the bramble said to the trees, If in truth you anoint me king over you, then come and put your trust in my shadow: and if not...

Songs 2:3 As the apple tree among the trees of the wood, so is my beloved among the sons. I sat down under his shadow with great delight...

Isaiah 4:5,6 And the LORD will create on every dwelling place of mount Zion, and on her assemblies, a cloud and smoke by day...

Lamentations 4:20 The breath of our nostrils, the anointed of the LORD, was taken in their pits, of whom we said...

The Answer to Trust
'Because he hath set his love upon Me, therefore will I deliver him: I will set him on high, because he hath known My name.' --PSALM xci. 14. There are two voices speaking in the earlier part of this psalm: one that of a saint who professes his reliance upon the Lord, his Fortress; and another which answers the former speaker, and declares that he shall be preserved by God. In this verse, which is the first of the final portion of the psalm, we have a third voice--the voice of God Himself, which …
Alexander Maclaren—Expositions of Holy Scripture

Evensong
Gerhard Ter Steegen Ps. xci. 4 Take me, Jesus, to Thy breast; Folded close in warmth and rest, Keep me near to Thee; Silenced in the bliss profound Of the love that wraps me round, Every care shall be. Every breath for Thee alone, O my heart's beloved One; Comfort me in sleep. Still deep rest art Thou to Thine, Safely in Thine arms divine Thy beloved keep. …
Frances Bevan—Hymns of Ter Steegen, Suso, and Others

God's Merciful Guardianship of his People. --Ps. Xci.
God's merciful Guardianship of his People.--Ps. xci. Call Jehovah thy salvation, Rest beneath the Almighty's shade, In his secret habitation Dwell, and never be dismay'd: There no tumult shall alarm thee, Thou shalt dread no hidden snare, Guile nor violence can harm thee In eternal safeguard there. From the sword at noon-day wasting, From the noisome pestilence, In the depth of midnight blasting, God shall be thy sure defence; Fear not thou the deadly quiver, When a thousand feel the blow, Mercy …
James Montgomery—Sacred Poems and Hymns