Esau thy firstborn # 01_GEN_27_19 # And Jacob said unto his father, I [am] Esau thy firstborn; I have done according as thou badest me: arise, I pray thee, sit and eat of my venison, that thy soul may bless me. 
even thy firstborn # 02_EXO_04_23 # And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, [even] thy firstborn. 
son thy firstborn # 01_GEN_27_32 # And Isaac his father said unto him, Who [art] thou? And he said, I [am] thy son, thy firstborn Esau. 
thy firstborn # 02_EXO_04_23 # And I say unto thee, Let my son go, that he may serve me: and if thou refuse to let him go, behold, I will slay thy son, [even] thy firstborn.