showing entries by array of ID number

I wrote a module for finding the most related entries to the entry. I tried to count number of common tags and then sorted t. finally I stored the most related entry IDs in an array. Unfortunately I couldn’t show entries by arraye of ID numbers. I tried entries tag with id , but it seems doesn’t work. I used Loop or showing one by one, but it doesn’t work. and I created string by adding ID numbers with comma, but It igores ID tag of entries tag.