The requirements for admission are:
to walk blamelessly and to do what is right and speak the truth
do not slander, do no evil to friends, and do not reproach your neighbors
stand by your oath--even to your hurt
do not lend money at interest, don't take a bribe.
Those seeking acceptance in the congregation were supposed to modify their behavior outside the building. Further integration--they had been told what was right and, now, they were supposed to live out what they had been told.
Their relationship with God is affected by, even dependent on, their relationship with their community. Moreover, doing the right thing changes the doer: "Those who do these thing shall never be moved."