The sin "problem"

I have noticed a disturbing trend in Christians whoagree that sin is bad and who say yes you must be holy to see God but then say but dont worry about sinning its not that big a deal. Just ask for forgiveness and bam problem solved. Even though the bible says that only those with clean hands and a pure heart will ascend to heaven. Psalms 24:3-4 or how about epistles of John.

And that is what we are! The reason the world does not know us is that it did not know him. Dear friends, How great is the love the Father has lavished on us, that we should be called children of God! now we are children of God, and what we will be has not yet been made known. But we know that when he appears, we shall be like him, for we shall see him as he is. Everyone who has this hope in him purifies himself, just as he is pure. Everyone who sins breaks the law; in fact, sin is lawlessness. But you know that he appeared so that he might take away our sins. And in him is no sin. No one who lives in him keeps on sinning. No one who continues to sin has either seen him or known him. Dear children, do not let anyone lead you astray. He who does what is right is righteous, just as he is righteous. He who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil's work. No one who is born of God will continue to sin, because God's seed remains in him; he cannot go on sinning, because he has been born of God. This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God; nor is anyone who does not love his brother.
Is the blood of Christ such a common thing to us that we blow off the price He paid, ignore the sin we harbor in our life then eat and wipe our mouths and say Ive done nothing wrong. I am a good person because of what Christ has done for me. But if I ignore sin in my life, or even more insidious the desire to sin. I am spitting on God's grace and His son. I need to be transformed by the renewing of my mind.

Do not love the world or anything in the world. If anyone loves the world, the love of the Father is not in him. For everything in the world--the cravings of sinful man, the lust of his eyes and the boasting of what he has and does--comes not from the Father but from the world. The world and its desires pass away, but the man who does the will of God lives forever.

Or how about Hebrews

For if we sin willfully after we have received the knowledge of the truth, there no longer remains a sacrifice for sins, but a certain fearful expectation of judgment, and fiery indignation which will devour the adversaries. Anyone who has rejected Moses' law dies without mercy on the testimony of two or three witnesses. Of how much worse punishment, do you suppose, will he be thought worthy who has trampled the Son of God underfoot, counted the blood of the covenant by which he was sanctified a common thing, and insulted the Spirit of grace? For we know Him who said, "Vengeance is Mine, I will repay," says the Lord. And again, "The Lord will judge His people." It is a fearful thing to fall into the hands of the living God.

Gods not just a big push over. Pay attention to what you are doing before its to late. Your motives and desires are just as important as your actions.