Hi brettdj,
thanks.
1) the pattern is
\GRK Mt [0-9]{1,3}:[0-9]{1,3}*^13 (wildcards) (in italian Office VBA "," = ";")

would match the whole row
GRK Mt 1:1 Bbloj gensewj 'Ihso Cristo uo Daud uo 'Abram.

after match
GRK Mt 1:2 'Abra?m ?g?nnhsen t?n 'Isa?k, 'Isa?k d? ?g?nnhsen t?n 'Iak?b, 'Iak?b d? ?g?nnhsen t?n 'Io?dan ka? to?j ?delfo?j a?to?

and so on always the whole row that begin with GRK.

The problem is: the text of first document (here is at the begin of the row GRK, GRT, CEI, NVT, NM.....) where GRK whole text is bad. And I must substitute the text of whole row beginning with GRK with the correct text by the second documents where rows begins with GRK (all text in second document Has GRK at the begin of row).

Are you looking to replace each line that matches in Doc 1, with the corresponding match in Doc 2? Yes.

The final result is a document the same of first document with the correct text of GRK rows.

example enclosed (only the 1 e 2 document)