What is the meaning of “Rahab who sits still.”?
Isaiah 30:7 ESV
Egypt’s help is worthless and empty; therefore I have called her “Rahab who sits still.”
Rahab, a " symbolic sea monster," that symbolizes Egypt. *
Isaiah 51:9 (NET Bible)
9 Wake up! Wake up! Clothe yourself with strength, O arm of the Lord![a] Wake up as in former times, as in antiquity. Did you not smash the Proud One? Did you not wound the sea monster?
Rahab --Some of the "footnotes" comments by NET Bible on Isaiah 51:9
Isaiah 51:9 tn This title (רַהַב, rahav, “proud one”) is sometimes translated as a proper name: “Rahab” (cf. NAB, NASB, NIV, NRSV). It is used here of a symbolic sea monster, known elsewhere in the Bible and in Ugaritic myth as Leviathan. This sea creature symbolizes the forces of chaos that seek to destroy the created order. In the Bible “the Proud One” opposes God’s creative work, but is defeated (see Job 26:12; Ps 89:10). Here the title refers to Pharaoh’s Egyptian army that opposed Israel at the Red Sea (see v. 10, and note also Isa 30:7 and Ps 87:4, where the title is used of Egypt).
What is the significance?
Egypt promises everything but does nothing. Judah’s alliance with her is a fatal mistake.
Is this an allusion to Revelation 17:1?
One of the seven angels who had the seven bowls came and said to me,
"Come, I will show you the punishment of the great prostitute, who
sits by many waters.
It is not an allusion to 17:1, Why?
Who is the "great prostitute"
1/ She has committed acts of sexual immorality with the kings of the earth, including Rome, so it is not Rome as some say.
Revelation 18:9 NASB
“And the kings of the earth, who committed acts of sexual immorality
and lived luxuriously with her, will weep and mourn over her when they
see the smoke of her burning,
2/ The merchants of the earth weep and mourn over her,
Revelation 18:11-12a,15 NASB
11 “And the merchants of the earth weep and mourn over her because no
one buys their cargo any more— 12 cargo of gold, silver, precious
[i]stones, and pearls; fine linen, purple, silk, and scarlet;15 The
merchants of these things, who became rich from her, will stand at a
distance because of the fear of her torment, weeping and mourning,
3/ The nations of the earth were deceived by her "magic spells"
23 and the light of a lamp will never shine in you again; and the
voice of the groom and bride will never be heard in you again; for
your merchants were the powerful people of the earth because all the
nations were deceived by your witchcraft.
"the great prostitute"
It is not the nations of the earth for they have committed sexual immorality with her, it is not the merchants because they mourn over her, and she has deceived the nations of the earth with her " magic spells". All these point out to the false religions of the world.