James 2:8, Jn 13:34, Jn 15:13, Mt 5:44, Rom 5:8

We will be judged by the law of liberty, the gospel of Christ. (James 2:12)

James 2:12 So speak ye, and so do, as they that shall be judged by the law of liberty.

The supreme law that Christ commanded is love that saves the soul. (James 2:8, Jn 13:34, Jn 15:13, Mt 5:44)

James 2:8 If ye fulfil the royal law according to the scripture, Thou shalt love thy neighbour as thyself, ye do well:

Jn 13:34 A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.

Jn 15:13 Greater love hath no man than this, that a man lay down his life for his friends.

Mt 5:44 But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;

God gave for us the love of killing His Son to save us. Christ gave us the love to lay down his life in order to save us. (Rom 5:8)

Rom 5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.