I saw this yesterday, but got distracted in my preparation for turkey camp.
Your second question is the easiest to answer. Yes, a Christ follower should be led of the Spirit. Actually, a Christ follower is
always led by the Spirit, its just sometimes we 'stray' off.
The "how" of this is probably best explained through the 'why' perspective. That is, why are we led by the Spirit? Once you see
why we are led, then you can see
how we are led. Make sense?
Before we believed we were walking around 'dead'
to God. Meaning, we did not know Him, seek Him, or want anything to do with pleasing Him. Instead, we only knew what we wanted, what we did, and what is around us physically. Meaning, we were 'alive' to those things of our self and around us.
When we receive the Spirit of God, a flip flop happens. We are now 'alive' to God - we can seek Him, we can know Him, and we can do those things that please Him. However, because we have not entered into eternity yet, we are still confined to our 'flesh'. So instead of being dead to God, and alive to our self, we are now alive to God
and our self. Those are just the cold hard facts. Instead of only seeing one way, now we see both ways.
This is why Paul constantly wrote to 'consider' ourselves dead to sin(the flesh). This is where the "how" and "why" aspects of being led merge into each other.
Jhn 6:53-63
So Jesus said to them, “Truly, truly, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you.
Whoever feeds on my flesh and drinks my blood has eternal life, and I will raise him up on the last day.
For my flesh is true food, and my blood is true drink.
Whoever feeds on my flesh and drinks my blood abides in me, and I in him.
As the living Father sent me, and I live because of the Father, so whoever feeds on me, he also will live because of me.
This is the bread that came down from heaven, not like the bread the fathers ate, and died. Whoever feeds on this bread will live forever.”
Jesus said these things in the synagogue, as he taught at Capernaum.
When many of his disciples heard it, they said, “This is a hard saying; who can listen to it?”
But Jesus, knowing in himself that his disciples were grumbling about this, said to them, “Do you take offense at this?
Then what if you were to see the Son of Man ascending to where he was before?
It is the Spirit who gives life; the flesh is no help at all. The words that I have spoken to you are spirit and life.
We need the Spirit to lead us(the why), because our flesh - our self - is no help at all. Only the Spirit gives life because He is life. Here is where a persons theology will either help or confuse them.
If a person thinks that God gives them life apart from the continual life of the Spirit, then they don't understand the work the Spirit does in leading us. However, if you understand that the life of God is a continual flow from the Spirit, then you can understand why we need to be led.
How are we led is the next part.
Jhn 14:10-11
Do you not believe that I am in the Father and the Father is in me? The words that I say to you I do not speak on my own authority, but the Father who dwells in me does his works. Believe me that I am in the Father and the Father is in me, or else believe on account of the works themselves.
Jhn 16:13-15
When the Spirit of truth comes, he will guide you into all the truth, for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come. He will glorify me, for he will take what is mine and declare it to you. All that the Father has is mine; therefore I said that he will take what is mine and declare it to you.
We are led by the Spirit
guiding us. What that 'guiding' is actually means to teach.
So the Spirit of God 'leads' us by continually teaching us. This is a simple concept if you think about it. How does a person learn from one teaching them? Two things, first you have to listen.
If you are not listening, because you already know it all, then you cannot be taught. Also, if you do not want to know anymore, then you are not going to listen. Remember back to the start of the post. Before we were 'dead' to God, but now we are 'alive' to Him - which spurs our desire to know Him. The Spirit is constantly teaching us about God - when we listen.
Number two, we have to use that teaching. Check yourself at this one. This is where people either get ahead of themselves, or fall way behind. The same way a kid in 6th grade should not be held up in kindergarten, they should not also think they can know 12th grade stuff. What I mean is, being lead/taught, is a constant thing and is only as good as the one listening
and following.
Look back to the passage in John 6. We feed on His flesh and drink His blood. This threw a LOT of people off. But this is the whole of the matter. The Spirit is the one who gives us this food and drink. You would not eat a dinner, drink a glass of water, and say you never need to again. So it is with the Spirit, and this is what His leading is - it is the feasting and drinking of Christ.
You cannot turn this into a super spiritual - out of this world - mystical thing. Its real, allegorical, but real. Think about it this way. Sounds simple, but look at Christ's life. Why did He spend so many years with us, among us,
growing up with us? To set an example. He could have come in, showed Himself to be the Christ and died - but He physically lived before He died.
It is the leading/teaching of the Spirit of God, continual, that gives us life and transforms us. Being led of the Spirit simply means you are being transformed into the image of Christ - a very real, physical, understandable thing.
There is a TON of more stuff that could be said, but I'll leave it there for now.