There are plenty of examples of biblical scripture instructing people to kill certain groups. Groups like homosexuals, atheists, believers in other religions, witches, fortune tellers, those who work on the Sabbath, newly married non-virgin girls, those who reject the ruling of a priest... the list is endless.
I don't know about you but I certainly consider these things to be examples of people being instructed to commit evil.
(and that is just the instructions on killing, there is more. Genocide being held up as a good thing, details on how to treat your slaves, denouncement of inter-ethnicity marriages as wrong and evil etc.)
Problem is what does and doesn't constitute the "true" path is obviously up to interpretation. That is the part that makes the "no true Scotsman" label valid.
Of course it is all about interpretation. That is why the other Rabbis asked Rabbi Jesus, what his yoke is, i.e. what the greatest commandment according to him is. Every Rabbi had a "yoke" whereby they interpreted and understood the Scriptures (the old testament as we know it).
Jesus declaring that it is love, shows His disciples (followers) the way they should understand God and His commandments.
What this mean is often that the Old Testament only starts making sense when you understand the New Testament teachings of Jesus which he gave us all through His apostles (followers).
Based on what I have just written, the Bible doesn't command us to commit evil.
Now, the Old testament is often difficult to understand, because it speaks firstly to an ancient people (who no longer exist). It also speaks about them, their history, customs, laws, etc and how their God led them through an uncivilised world where they were often the weakest nation.
Israel were Yahweh's (God's) people. God made a promise to Abraham, that he will give him an offspring (Israel) as numerous as the stars in the sky. God, in making this covenant with Abraham, had an obligation to provide for Israel, to protect them, to redeem them, to bring them to the promised land.
It is only in reading the Old Testament in the correct context, where you can come to understand why God gave them commands to kill other nations. It was a dog eat dog world and either Israel killed and destroyed other nations, or they destroyed Israel.
Israel also had to be kept pure in order to stop it from imploding, therefore the law was given through Moses. Israel's very own constitution in how they should live and act in order to remain pure before God.
The law and commandments were given for Israel so that they can survive and bring about a true offspring for Abraham, which we find in the coming of Jesus.