Cross reference
Job 8:11
11 Can the rush grow up without mire? Can the flag grow without water?
Exodus 2:3
3 And when she could not longer hide him, she took for him an ark of bulrushes, and daubed it with slime and with pitch; and she put the child therein, and laid it in the flags by the river's brink.
Isaiah 19:5-7
5 And the waters shall fail from the sea, and the river shall be wasted and become dry.
6 And the rivers shall become foul; the streams of Egypt shall be diminished and dried up; the reeds and flags shall wither away.
7 The meadows by the Nile, by the brink of the Nile, and all the sown fields of the Nile, shall become dry, be driven away, and be no more.