In between Ephesians and Philippians we read two Psalms and three chapters of Isaiah.
Psalm 70, of David, a short, urgent petition for deliverance, full of praise.
Psalm 71. This Psalm has the same theme as Psalm 70, but is much more detailed. It is of an older man, strong in faith, most probably David.
Isaiah 2. The famous chapter containing “beating swords into plowshares” “study war no more” and the Day of the LORD is introduced.
In Isaiah 3 the prophet proclaims judgment on Jerusalem and Judah.
Isaiah 4. “In that day”. This refers to the Messianic reign after the Day of the LORD. “The Branch” is introduced.