Right. If the Holy Spirit lives in a person, it’s not possible to be possessed. I believe there can be demonic influence from the outside, but not indwelling. Influence most likely goes on constantly.
Thank You
When the Holy Spirit is within, there is a radiance of Light that unclean spirits are afraid of.
Hell is perception a soul experiences when trying to hold onto darkness while trying to exist in the radiance if God.
It’s like placing a dense object in the high frequency of a microwave. It heats up and catches on fire.
Yep. A new-born babe-in-Christ matures through various stages of spiritual life: through infancy, to childhood, to youth, then spiritual adulthood when one has finally overcome the Wicked One (1 Jn. 2:13,14). This is called "progressive sanctification" and takes many years, It is not something that happens instantly.
At the new birth God frees one from the penalty of sin and is given the power to overcome sinful habits, which he/she could not in one's natural state.