Regeneration = Greek word paliggenesia (from 3825 /pálin, "again" and 1078 /génesis, "birth, beginning") – properly, the coming of new birth because "born again"; regeneration.
When you claim a person must be "regenerated" before he/she can hear the word of God, you are saying that a person must be born again before he/she can "hear" the Word which he/she trusts and believes which results in the believer being sealed with that Holy Spirit of promise (born again).
Again, look at Eph 1:13:
In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
We trusted after we heard the word of truth; then we believed the gospel of salvation; then we were sealed with that holy Spirit of promise.
Eph 1:13 does not state that regeneration occurs before hearing.