"A righteous man has more excellent promises belonging to him. What a sinner has is rather by providence than by virtue of a promise. It is the saints who are called "heirs of the promise;" Hebrews 6:17, and those promises are precious, 2 Peter 1:4. They are the beams of the sun of righteousness, the pleasant streams that run in the paradise of Scripture. "All things work together for good," Romans 8:28, but to whom? "To them that love God." All mercies shall work for their good. They shall be footstools to lift up their hearts higher to heaven, and all afflictions shall work for their good; the rod shall be a divine pencil to draw Christ's image more lively upon their souls.
There is another promise. "I will never leave thee nor forsake thee," Hebrews 13:5. This promise belongs to the heirs of salvation. God will not leave His people either to their strong corruptions or their weak graces. He will counsel them in their doubts, supply them in their wants, and defend them in their dangers. When they are most assaulted, they shall be most assisted. How can God leave them? They are His spouse. Will a man leave his spouse?
Thus the saints have the royal charter of the promises settled upon them. As these promises are sweet, so they are sure. Men reckon their wealth not always by what ready money they have in their houses but by their bonds and leases. A Christian's estate lies mostly in bonds and bills of God's hand sealed with His oath. What better security can there be?" Thomas Watson
What better security can there be indeed?!! If God be for us, who can be against us? Where your treasures are, there will your heart be also. When we work for earthly gain, our gains are in earthly currency, but when our aim is Heaven, then God pays us in another currency; a currency that does not fluctuate or depreciate; that can't be stolen or embezzled; that will not rust or corrode. Wait for that reward, rather than have it come in earthly currency.
When God makes a promises, He keeps it. He answers our prayers, but more often then not He answers in a different way than we are thinking, because He knows best. There are some great lines in these 3 paragraphs.