Hi Keith, as you would be aware Rendham is right near Saxmundham and there are at least two baptisms there in the right period with parent information. However, to tie down the right one will be hard...
Day:28
Month:Feb
Year:1801
Forename:John
Surname:CABLE
Relationship:son of
Parents:Joseph & Susan (RUSSELL)
Place:Saxmundham
County:Suffolk
Record source:Suffolk Baptism Index - Suffolk Family History Society
Day:10
Month:Feb
Year:1805
Forename:John
Surname:CABALL
Relationship:son of
Parents:Elizabeth CABALL sw
Place:Saxmundham
County:Suffolk
Record source:Suffolk Baptism Index - Suffolk Family History Society