Crucify the Flesh

Therefore, brethren, we are debtors, not to the flesh, to live after the flesh. For if ye live after the flesh, ye shall die: but if ye through the Spirit do mortify the deeds of the body, ye shall live. Romans 8: 12-13

Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness.
2Peter 3:17

These are just a few scriptures which show clearly that if we do not heed to the scriptures and do not walk in His ways, we will perish just as the ungodly.

The Lord will never send us away, but it are our sins which separate us from Him.
Nothing and nobody can take us out of His Hand, but we can walk out of His Hand if we want to. And many do, because they do not want to obey, they rather follow their own desires.
They may, so to speak, enjoy their sinful life. But they have to pay for it and will receive eternal death and be lost for eternity if they continue in their sin.

Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness. But grow in grace, and in the knowledge of our Lord and Saviour Jesus Christ. To Him be glory both now and for ever. Amen
2 Peter 3:17-18

Just consider the shortness of life and the length of eternity!