Some more thoughts to cause us to contemplate our weakness and frailty. But for the grace of God in our lives we would be reveling in the gall of iniquity and held captive by passion and lusts! Once again the following is from Thomas Watson's, Body Of Divinity.
Sin cleaves to us, as blackness to the skin of the Ethiopian, so that we cannot get rid of it. Paul shook off the viper on his hand--but we cannot shake off this inbred corruption! Sin comes not, as a lodger, for a night--but as an indweller. "sin that dwelleth in me." Romans 7:17. Sin is an evil spirit, which haunts us wherever we go.
Sin, though latent in the soul, and as a spring which runs under ground--often breaks forth unexpectedly. Christian, you cannot believe that evil which is in your heart, and which will break forth suddenly--if God should leave you! "But what, is thy servant a dog, that he should do this great thing?" - 2 Kings 8:13. Hazael could not believe he had such a root of evil in his heart, that he would rip up pregnant women. "Is your servant a dog?" Yes, and worse than a dog--when that corruption within is stirred up!
If one had come to Peter and said, "Peter, within a few hours you will deny Christ;" he would have said, "Is your servant a dog?" But alas! Peter did not know his own heart, nor how far that corruption within would prevail upon him. The sea may be calm, and look clear; but when the wind blows--how it rages and foams! So though now your heart seems good--yet, when temptation blows--how may sin reveal itself, making you foam with lust and passion!
Who would have thought to have found adultery in David, and drunkenness in Noah, and cursing in Job? If God leaves a man to himself--how suddenly and scandalously may sin break forth in the holiest men on the earth!
1Corinthians 10:12 - Wherefore let him that thinketh he standeth take heed lest he fall.