'Right hand' in the Bible

She put her hand to the tent peg, and her right hand to the workmen's hammer; and with the hammer she struck Sisera, she crushed his head, when she had pierced and stricken through his temples.

And Samson took hold of the two middle pillars upon which the house stood, and on which it was borne up, of one with his right hand, and of the other with his left.