Fortresses

Places strong by nature.
Numbers 24:21 And he looked on the Kenites, and took up his parable, and said, Strong is thy dwellingplace, and thou puttest thy nest in a rock.
Places fortified by art.
Jeremiah 51:53 Though Babylon should mount up to heaven, and though she should fortify the height of her strength, yet from me shall spoilers come unto her, saith the LORD.
The security of a nation.
Isaiah 33:16 He shall dwell on high: his place of defence shall be the munitions of rocks: bread shall be given him; his waters shall be sure.

Daniel 11:10 But his sons shall be stirred up, and shall assemble a multitude of great forces: and one shall certainly come, and overflow, and pass through: then shall he return, and be stirred up, even to his fortress.

Cities.
Judges 9:31 And he sent messengers unto Abimelech privily, saying, Behold, Gaal the son of Ebed and his brethren be come to Shechem; and, behold, they fortify the city against thee.

Nehemiah 4:2 And he spake before his brethren and the army of Samaria, and said, What do these feeble Jews? will they fortify themselves? will they sacrifice? will they make an end in a day? will they revive the stones out of the heaps of the rubbish which are burned?
Strong-holds.
Judges 6:2 And the hand of Midian prevailed against Israel: and because of the Midianites the children of Israel made them the dens which are in the mountains, and caves, and strong holds.

2 Chronicles 11:11 And he fortified the strong holds, and put captains in them, and store of victual, and of oil and wine.

Forts.
2 Samuel 5:9 So David dwelt in the fort, and called it the city of David. And David built round about from Millo and inward.

Isaiah 25:12 And the fortress of the high fort of thy walls shall he bring down, lay low, and bring to the ground, even to the dust.
Strong towers.
2 Chronicles 26:9 Moreover Uzziah built towers in Jerusalem at the corner gate, and at the valley gate, and at the turning of the wall, and fortified them.

Afforded protection in danger.
Judges 6:2 And the hand of Midian prevailed against Israel: and because of the Midianites the children of Israel made them the dens which are in the mountains, and caves, and strong holds.
Defended against enemies.
Nahum 2:1 He that dasheth in pieces is come up before thy face: keep the munition, watch the way, make thy loins strong, fortify thy power mightily.
OFTEN

Entered by the enemy.
Daniel 11:7 But out of a branch of her roots shall one stand up in his estate, which shall come with an army, and shall enter into the fortress of the king of the north, and shall deal against them, and shall prevail:
Spoiled.
Hosea 10:14 Therefore shall a tumult arise among thy people, and all thy fortresses shall be spoiled, as Shalman spoiled Betharbel in the day of battle: the mother was dashed in pieces upon her children.
Levelled.
Isaiah 25:12 And the fortress of the high fort of thy walls shall he bring down, lay low, and bring to the ground, even to the dust.
Deserted, &c.
Isaiah 34:13 And thorns shall come up in her palaces, nettles and brambles in the fortresses thereof: and it shall be an habitation of dragons, and a court for owls.
Destruction of, threatened.
Isaiah 17:3 The fortress also shall cease from Ephraim, and the kingdom from Damascus, and the remnant of Syria: they shall be as the glory of the children of Israel, saith the LORD of hosts.

God's protection.
Psalm 18:2 The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower.

Jeremiah 16:19 O LORD, my strength, and my fortress, and my refuge in the day of affliction, the Gentiles shall come unto thee from the ends of the earth, and shall say, Surely our fathers have inherited lies, vanity, and things wherein there is no profit.
Christ, the defence of saints.
Isaiah 33:16 He shall dwell on high: his place of defence shall be the munitions of rocks: bread shall be given him; his waters shall be sure.
Protection afforded to ministers.
Jeremiah 6:27 I have set thee for a tower and a fortress among my people, that thou mayest know and try their way.