Through my studies at Bible College is the first time I have come to hear about the term corporate salvation. There does seem to be a Paradox on this subject. As you read through the Psalms like Psams 71:4 "Deliver me, O my God out of the hands of the wicked". Note O my God the writer of this Psalm uses personal pronoun "my God" SO we can say that Individual people in the Bible did have a personal relationship with God. Even in worship Psalm 63:1 "O God, You ae my God; early will I seek you". So in the light of this there is personal salvation and Corporate salvation. There can be much more said on this like in Joshua where he challenged the people to chose who you are going to serve, but me and my house we are going to serve God. So that verse can be also read in both ways as Corporate or personal.