Only the Lord establish his word— Houbigant renders this, only the Lord establish that which thou hast said. We prefer, says he, to the common reading דברו debaro, his word, דברךֶ debarek, thy word, which the LXX, Syriac, and Arabic follow; for it does not appear that God had promised Hannah any thing concerning the condition and future life of her son. Therefore the words, may the Lord establish what thou hast spoken, signify "may the Lord grant that what thou hast vowed may be fulfilled, and that the child may live which is born to us."
Related Commentaries of 1 Samuel 1:23
1 Samuel 1:23
23 And Elkanah her husband said unto her, Do what seemeth thee good; tarry until thou have weaned him; only the LORD establish his word. So the woman abode, and gave her son suck until she weaned him.