Matthew 6:19-20:
Lay not up for yourselves treasures upon earth, where moth and rust doth corrupt, and where thieves break through and steal: But lay up for yourselves treasures in heaven, where neither moth nor rust doth corrupt, and where thieves do not break through nor steal:
The treasure of your life is that which is most important to you. The exhortation is not to have treasure on earth because moth and rust do corrupt temporal treasures. Is it not true that as soon as you buy the beautiful, new car it decreases in value? As time passes, the engine needs repair, the tires wear out, the paint gets chipped, etc. All material things are subject to moth and rust. And if corruption does not get to them, then thieves break through and steal. Even human relationships are subject to corruption and thievery.
The heavenly treasures are not corruptible because they are spiritual. Your righteousness, justification, sanctification, holiness, eternal life, etc. are not subject to moth or rust. No thief, not even “the” thief can break through and steal.
Jesus prayed to God, who could save him from death. He prayed and pleaded with loud crying and tears, and he was heard because of his devotion to God.
Matthew 6:21:
For where your treasure is, there will your heart be also.
Whatever you deem most important in your life is your heart’s true treasure. Remember Proverbs 23:7 says, “For as he thinketh in his heart, so is he….”
How does one know what his treasure is?
Matthew 12:33-35:
Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit. O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh. A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.
The way you look and the actions you take do not necessarily reflect your heart. However, these scriptures do say that “out of the abundance of the heart the mouth speaketh.” That which comes out of your mouth most often is a reflection of that which is in your heart. If you find yourself speaking frequently about the most current movies and the various celebrities, then a part of your treasure is movies. That is not to say that any mention of a movie reveals or indicates your treasure; but if movies are your predominate thoughts, they are your treasure. This could be true of your work, family, sports, or many other things. What do you think about most and what do you talk about most? This is your treasure. Back in Matthew 6 is an important truth on determining God to be our lives’ treasure.
Matthew 6:22-24:
The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light. But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness! No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
Each person must make the deliberate decision of will to have God be his treasure. The Word of God states that you cannot serve God and the world. If God is to be the treasure of your heart, then your thoughts must be single. You must keep your thoughts focused on God. If you want your heart to be Christ-like, determine that your treasures are the things of God.
Psalms 119:162:
I rejoice at thy word, as one that findeth great spoil.
As you rejoice at His Word as a great treasure, your heart will be focused on Him and the things of God.