Envy, a feeling of discontent or dissatisfaction due to another having more or better, is traditionally considered one of the worst sins. (Pr 27:4) It desires others to have less or worse, and is thus purely and uniquely destructive. It’s also grounded in the primal lie that God Himself does not satisfy (Ps 63:5), and that something else will.
Bitterness is resenting God for not treating us as well as we deserve (if we knew we deserved worse we’d be thankful; since God could improve our lot and hasn’t, our resentment must be toward Him). It presumes God’s not good, that He’s not ordering things rightly, that we could do it better. It’s born of pride; thinking of ourselves more highly than we ought. (Ro 12:3)
So, bitter envying is quite the combination! a feeling of resentment toward God for others having more or better; it combines the destructiveness of envy with the arrogance and pride of bitterness. As we find this within we should admit the corruption and deceit it reveals, and turn ourselves back toward the truth. (Ja 1:14) The truth is we don’t deserve better, and what we’re after won’t satisfy us.
Bitterness and envy cripple, trapping us in brokenness; they don’t move us to healthy living. Thankfulness and worship are the healthy counterparts, setting us free to become all God has designed us to be, to live in the fullness (Ep 3:19) and adventure to which He’s called us, a life of ultimate pleasure and goodness. (1Pe 3:10-11)
Truth is, we deserve to be burning in Hell forever; no one suffers eternal Hell who doesn’t fully deserve it, and we’re as bad or worse when left to ourselves. (Php 2:3) Anything else is mercy, God restraining us and giving us repentance (2Ti 2:25), for which we should be exceedingly thankful.
Also, we’re designed to enjoy God supremely; pursuing anything apart from God (as opposed to pursuing it in God, for God and with God) is to try to replace Him with part of His creation. (Ro 1:25) This is based on the primal lie and it will always fail; be sure of it.
We may know these things academically, but when we’re bitter and unthankful, envious and wanton, we reveal another belief system in opposition to God operating within our sub-conscious, our core selves. We did not learn this in Christ. (Ep 4:20) Rather than dismissing this as natural, confess it as a work of the devil, reckon ourselves dead to it (Ro 6:11), ask God to destroy it (1Jn 3:8b), and consistently expose the sub-conscious mind to truth with a prayerful intensity that takes no prisoners. (Mt 5:29-30)
Christ in us, living in and through us, always believes unto joyful obedience. He is able to do exceeding abundantly above all that we ask or think, according to the power that works in us. (Ep 3:20)