What do I know if I am walking after the flesh or walking after the Spirit?
How do I walk after the Spirit?
What happens if I continue to walk after the flesh?
Galatians 5:19-21 New King James Version (NKJV)
19
Now the works of the flesh are evident, which are: adultery, fornication, uncleanness, lewdness,
20 idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies,
21 envy, murders, drunkenness, revelries, and the like; of which I tell you beforehand, just as I also told
you in time past,
that those who practice such things will not inherit the kingdom of God.
That's the answer to your question about how to know if you walk in the flesh and happens if you continue walking in it.
How to walk in Spirit? simple. study the words of God and live by it.
How will you know if you live by the Spirit?
Galatians 5:22-23 New King James Version (NKJV)
22 But the fruit of the Spirit is love, joy, peace, long suffering, kindness, goodness, faithfulness,
23 gentleness, self-control. Against such there is no law.