Not trying to say you shouldn't love God by any means but that's not the first commandment. Its to have no other gods before him. Wiccans are an example of a people that can claim to love God but to also have other gods before Him.
The First Commandment is to Love God...
Deu 6:5 And thou shalt love the LORD thy God with all thine heart, and with all thy soul, and with all thy might.
The Ten Commandments tell us how to love God...
1Jn 5:2 By this we know that we love the children of God, when we love God, and keep his commandments.
1Jn 5:3 For this is the love of God, that we keep his commandments: and his commandments are not grievous.
Joh 14:15 If ye love me, keep my commandments.
Joh 14:21 He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
Then the last six zero in on how to love our neighbor...
Rom 13:9 For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself.
Rom 13:10 Love worketh no ill to his neighbour: therefore love is the fulfilling of the law.
Notice that working no ill to his neighbor is what you have if you keep the last six Commandments? Doing this fulfills the Law...
Mat 22:37 Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
Mat 22:38 This is the first and great commandment.
Mat 22:39 And the second is like unto it, Thou shalt love thy neighbour as thyself.
Mat 22:40 On these two commandments hang all the law and the prophets.
All of God's Commandments hang on these two Great Commandments. Notice it does not say they are done away or abolished by these two Great Commandments? It says they are suspended by, supported by the two Great Commandments.