When did God do this preparing?
Since the earlier part of the passage was dealing with God’s sovereign work in the life of a believer, we should consider this also as part of His sovereign decree and part of God’s plan. God’s sovereign decree is that His people should engage in good works. This was God’s plan from the eternity past. [Eph. 1:11-12] The result of salvation which leads to good works is also in the definite part of God’s plan for His people. This is how we should understand the phrase “which God prepared beforehand that we should walk in them.”
What did God prepare?
The very purpose for Christian life- characterized by good works.
How do we know what these good works are, so that we know to walk in them?
This requires a lengthy study. But I will just focus on one passage. There are several other ones.
But I say, walk by the Spirit, and you will not carry out the desire of the flesh. For the flesh sets its desire against the Spirit, and the Spirit against the flesh; for these are in opposition to one another, so that you may not do the things that you please. But if you are led by the Spirit, you are not under the Law. Now the deeds of the flesh are evident, which are: immorality, impurity, sensuality, idolatry, sorcery, enmities, strife, jealousy, outbursts of anger, disputes, dissensions, factions, envying, drunkenness, carousing,and things like these, of which I forewarn you, just as I have forewarned you, that those ewho practice such things will not inherit the kingdom of God. But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, self-control; against such things there is no law. Now those who belong to Christ Jesus have crucified kthe flesh with its passions and desires. (Galatians 5:16-24 NASB)
Give money effort & time for - family members, church members, other believers, neighbors & strangers.
I do not brood on my current troubles, able to see others troubles, not a complainer, and think of my hope in Christ.
Not get perturbed when things don't go my way, not overly concerned about my future, not getting frustrated about things I cannot do, set aside my trouble for others needs.
Not easily frustrated by other people short comings, willing to wait for my desires, not complaining about what I go thru, not easily offended by others dealings.
Generosity or kindness
Forgiving, help those in need, not self- focused, give away what is not needed.
Approve good things when done by unlikeable people, proper sexual morality, no deceit of any kind.
Counted on to keep my word, keep appointments, no Reminders needed for something that I commit, no shopping around for best relationships.
No talk about personal success, not pointing out failures of others for conversation, no talk about personal possessions, have compassion for others who fail..
Do not lose my temper, not eating or drinking what I shouldn't. Do not give time or money for something that I shouldn't. Able to look away from what I shouldn't.
Lot more can be found in the Scriptures. I will be happy to expand some more if found to be profitable.