Noun
tower of strength (plural towers of strength)
A person who supplies strong and reliable support, especially in difficult times.
That tower of strength Which stood four-square to all the winds that blew. Alfred, Lord Tennyson
Abstinence from all injustice to other first-rate powers is a greater tower of strength than anything that can be gained by the sacrifice of permanent tranquillity for an apparent temporary advantage. Thucydides
When you have a wife who has been a tower of strength and shown more courage than you dreamed existed - that's the finest I know. Lou Gehrig
My mother was the dearest, sweetest angel. She didn't talk; she sang. She was a tower of strength. Jayne Meadows
The kings name is a tower of strength. William Shakespeare