Matthew 5.19 cont.
19 Whoever, then should break one of the least of these commandments and should teach men to do so, shall be called least in the Kingdom of Heaven; but whoever shall practices and teach them will be called great in the Kingdom of Heaven.
The last of the Ten Commandments is about not coveting. This means an unwholesome way of thinking, or lustfully desiring something that belongs to someone else.
In ancient times the thoughts of man were considered to be free from control, and people could think what they liked so long as they did not put that into action.
The commandment of God that we should not covet corrects this idea. The thoughts of us all need to be controlled, because it is in the thoughts that sin is bred. James tells us:
 Temptation comes from the lure of our own evil desires.
 These evil desires lead to evil actions, and evil actions lead to death – James 1.14-15 (NLT).
One of the reasons that we should not covet is that by so doing we show a dissatisfaction with what God has already blessed us with. The followers of Jesus must learn that we have everything that we need.
God’s word also tells us:
As we know Jesus better, His divine power gives us everything we need for living a godly life. He has called us to receive His own glory and goodness! – 2 Peter 1.3 (NLT).
Our Heavenly Father knows what we need, and He will supply all our needs at the right time, not before time, nor will His supply be late. As Paul tells us:
And this same God who takes care of me will supply all your needs from His glorious riches, which have been given to us in Christ Jesus – Philippians 4.19 (NLT).
To covet someone or something shows a lack of trust and faith in our Heavenly Father.
Each of us must remember these words of Jesus:
32 Your Heavenly Father knows that you need all these things.
33 First of all seek His Kingdom and Righteousness, and all these things will be added to you – Matthew 6.32-33.
Therefore, there is no need for us to covet what anybody else has, because in all that we have our loving Heavenly Father has given us His best.
Understanding and accepting this would help us to have our minds renewed in the power of the Holy Spirit.