be flesh and blood

be somebody's (own) flesh and blood

to be someone's relative How can you be so cruel to him when he's your own flesh and blood?

Name	Pronounced	Usage
Othmar	-	German, Czech, Ancient Germanic
Laird	[lɛəd]
Vardan	-	Armenian
Acton	['æktən]
Golyat	-	Biblical Hebrew
'Aisha	-	Arabic