You can be bitter against two kinds of people.
- Lost people going to Hell. Hell is bad enough to pay for what he did, so being bitter against him is — Stupid.
- Saved and forgiven people. The Son of God died for it, and that is good enough to pay for what he did, so being bitter against him is — Stupid.
30 And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.
31 Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:
32 And be ye kind one to another, tenderhearted, forgiving one another, even as God for Christ’s sake hath forgiven you.
Verse 30: bitterness grieves the Holy Spirit — Really Stupid.
Verse 32: refusal to forgive denies God’s forgiveness for you — Really, Really Stupid.
Few things are more stupid than bitterness, for it undercuts a faith founded on forgiveness. I suppose that’s why Satan wants bitterness for us. Choosing what Satan wants is, of course, stupid.
If you struggle with bitterness, just stop. Remember Hell, remember the Cross, remember you have been forgiven. You do have a choice. End the stupidity. Stop now.