BITTERNESS REPRESENTS HARDSHIP, TRIALS AND TESTING

Exodus 15:23 And when they came to Marah, they could not drink of the waters of Marah, for they were bitter: therefore the name of it was called Marah.

Lamentations 1:4 The ways of Zion do mourn, because none come to the solemn feasts: all her gates are desolate: her priests sigh, her virgins are afflicted, and she is in bitterness.

Lamentations 3:1 I am the man that hath seen affliction by the rod of his wrath.

Lamentations 3:15 He hath filled me with bitterness, he hath made me drunken with wormwood.