"Bitter" is about releasing hurt and pain and forgiving those that caused it.

Lyrics:

Many times, I've been hurt by people who are close to my heart...it hurts worst when it's those you love the most.

I know this world is cruel. Yes this I understand. But God sent His Son to die for every man.

So I must forgive them

Yes, I must forgive them

I must forgive them

Don't let your heart

Chorus:

Don't let your heart get bitter. You've got to learn to let it go. Don't let your heart get bitter. Forgive, it's healing for your soul. Don't let your heart get bitter. You've got to learn to forgive. Don't let your heart get bitter. Forgive them, so your soul can live.

Bitter...don't let your heart get...bitter, no (repeat)