Which four-word idiom is used to describe Mount Tai and the Yellow River?

Mount tai is the top,

Taishan Beidou,

As steady as mount tai,

Heavier than Mount Tai-very important/significant.

a tower of strength

Rare, rare thing

Take the central plains,

Initiated by He Zhiqing,

Haiyan Heqing,

I won't stop until I reach the Yellow River.

Coexist with the country, Kawachi Wuqiong