We hear words like, "You are lucky," "I wish I had what you have," "It's not fair," and so on from those who see what you do and what you have. It is not everyone who congratulates you and says you have earned that skill or wealth. God knew that the hearts of mankind as influenced by Satan would tend towards thinking things are not fair and therefore become jealous with envy.

Paul noted that envy comes from obsession over that which we do not possess and may want (1 Timothy 6:4 1 Timothy 6:4He is proud, knowing nothing, but doting about questions and strifes of words, whereof comes envy, strife, railings, evil surmisings,
American King James Version×). The tenth commandment about lusting and coveting is entwined with envy and jealousy. This attitude is an ungodly one and needs to be conquered. It is a matter of the mind, and we are called to change the thinking that is offensive to God. Rejoice in the good fortune of others and work to gain your own. Riches cannot only be counted in dollars and cents—but rather in contentment and love (1 Timothy 6:11-12 1 Timothy 6:11-12 [11] But you, O man of God, flee these things; and follow after righteousness, godliness, faith, love, patience, meekness. [12] Fight the good fight of faith, lay hold on eternal life, whereunto you are also called, and have professed a good profession before many witnesses.
American King James Version×).