“The second is this: ‘Love your neighbor as yourself’” (Mark 12:31).
Second only to the responsibility to love God with all you are is the command to love your neighbor. However, again, “love” is a weasel word in our society. So what does it mean to love someone? Jesus helped us out with some statements that will make it clearer.
“So in everything, do to others what you would have them do to you, for this sums up the Law and the Prophets” (Matt 7:12).
We’ve labeled this the Golden Rule. It’s simple: Knowing nothing about that person, if you were the one in that situation, what would you want people to do for you? Many societies have a version of this, but it’s typically the negative, eg, “That which is hateful to you, do not do to another.” The negative is easy: If you don’t want to be set on fire, don’t set people on fire.
The positive requires you to do for burning people what you would want someone to do for you — namely, extinguish the flames. The positive is less easy. When you see someone who is hurting, someone who is hungry, someone who is cold, you are to give what you would like to receive were you in their place.
The apostles take this command seriously.
“I am the LORD your God, who brought you out of Egypt, out of the land of slavery. You shall have no other gods before me” (Exodus 20:2-3).
Loving God is more than feelings; it’s what you do. It’s obeying him, choosing to honor him in how you live. The Decalogue, though often divided into “vertical” and “horizontal” rules (meaning, those pertaining to sins against God and those against other humans), can be viewed from the perspective of how each is a sin against God.
The first few are pretty obvious. You shall have no other gods because that suggests that the Living God is on par with the idols (or possibly demons, cf, 1Cor 10:20) which is an insult. God doesn’t share what’s his. If we love him with all of our heart, soul, mind, and strength, we’ll have nothing left for another god — be it Ba’al or a modern god like money, success, or social acceptability.
You shall not make an image doesn’t just repeat “no other gods” but mainly forbids trying to “tame” God by misrepresenting him as less than he is. YHWH is not a calf. He is also not a grandfatherly figure who simply wants everyone to be happy. Thou shalt not replace God with a more manageable caricature of himself.