It is a circular thing. Love fulfills the commandments....and His commandments are to love. The love of God automatically keeps His commandments...this isn't something we need to try to do. Love does it.
On the other hand - the Bible says --
1Cor 9
"
I buffet my body and make it my slave - lest after preaching the Gospel to others I myself should be disqualified from it" 1 Cor 9:27
1 Cor 6
"7 Actually, then,
it is already a defeat for you, that you have lawsuits with one another. Why not rather be wronged? Why not rather be defrauded? 8
On the contrary, you yourselves wrong and defraud.
You do this even to
your brethren.
9 Or do you not know that the unrighteous will not inherit the kingdom of God?
Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals, 10 nor thieves, nor
the covetous, nor drunkards, nor revilers, nor swindlers, will inherit the kingdom of God. 11
Such were some of you;
Romans 11
20 Quite right, they were broken off for their unbelief, but
you stand by your faith. Do not be conceited, but fear; 21 for if God did not spare the natural branches, He will not spare you, either. 22 Behold then the kindness and severity of God; to those who fell, severity, but to you, God’s kindness,
if you continue in His kindness; otherwise you also will be cut off.
Rom 2
3 But do you suppose this, O man, when you pass judgment on those who practice such things and do the same
yourself, that you will escape the judgment of God? 4 Or do you think lightly of the riches of His kindness and tolerance and patience, not knowing that the kindness of God leads you to repentance? 5 But because of your stubbornness and unrepentant heart you are storing up wrath for yourself in the day of wrath and revelation of the righteous judgment of
God, 6 who will render to each person according to his deeds: 7 to those who
by perseverance in doing good seek for glory and honor and immortality, eternal life;
So we could be legalistic and refuse the Gospel, refuse to surrender to Christ ,, and merely offer lip service... some "token act" by which we might suppose we are in God's favor. Or we could accept the actual New Birth, New Creation, New Covenant of the Law of God written on the heart.