True believers come to understand that we as humans have many plans but what prevails is the purpose of the Lord ( Rd Prov 19:21). Many times we wonder why we haven`t yet received answers to our prayers. Some times certain peoples` relationship with God is negatively affected by prevailing circumstances; where by their love for God is conditional, depending on their acquisition of material things. Our life on earth is so limited that if you are really a believer, you cannot trade eternal happiness with momentary enjoyment. The Bible  urges us to set our minds on things above rather than earthly things (Colossians 3:2). With this knowledge you will not be affected by the negative attributes of comparing oneself to others such as jealousy, covetousness and so on.