What does God think about this world in which we live?
15 Love not the world, neither the things that are in the world. (The "world" spoken of here by John pertains to the ordered system of which Satan is the head.) If any man love the world, the love of the Father is not in him. (God the Father will not share the love that must go exclusively from Him with the world.) 16 For all that is in the world (there is nothing in the system of this world that is of God), the lust of the flesh (refers to evil cravings), and the lust of the eyes (craves what it sees), and the pride of life (that which trusts its own power and resources, and shamefully despises and violates Divine Laws and human rights), is not of the Father, but is of the world. (These things have the system of the world as their source, not the Heavenly Father.) 17 And the world passes away, and the lust thereof (whatever the allurements of the world, they soon fade): but he who does the Will of God abides forever (the one who keeps on habitually doing the Will of God).
1 John 2:15-17 (The Expositor's Study Bible, KJV)
So how are Believers supposed to live for God on a daily basis?
12 Let not sin (the sin nature) therefore reign (rule) in your mortal body (showing that the sin nature can once again rule in the heart and life of the Believer, if the Believer doesn't constantly look to Christ and the Cross; the "mortal body" is neutral, which means it can be used for Righteousness or unrighteousness), that you should obey it in the lusts thereof (ungodly lusts are carried out through the mortal body, if Faith is not maintained in the Cross [I Cor. 1:17-18]). 13 Neither yield you your members (of your mortal body) as instruments of unrighteousness unto sin (the sin nature): but yield yourselves unto God (we are to yield ourselves to Christ and the Cross; that alone guarantees victory over the sin nature), as those who are alive from the dead (we have been raised with Christ in "Newness of Life"), and your members as instruments of Righteousness unto God (this can be done only by virtue of the Cross and our Faith in that Finished Work, and Faith which continues in that Finished Work from day-to-day [Lk. 9:23-24]). 14 For sin shall not have dominion over you (the sin nature will not have dominion over us if we as Believers continue to exercise Faith in the Cross of Christ; otherwise, the sin nature most definitely will have dominion over the Believer): for you are not under the Law (means that if we try to live this life by any type of law, no matter how good that law might be in its own right, we will conclude by the sin nature having dominion over us), but under Grace (the Grace of God flows to the Believer on an unending basis only as long as the Believer exercises Faith in Christ and what He did at the Cross; Grace is merely the Goodness of God exercised by and through the Holy Spirit, and given to undeserving Saints).
Romans 6:12-14 (The Expositor's Study Bible, KJV)