"My name's sake" as you have quoted appears in only 18 verses in the Bible with the quote "name's sake" appearing in only 30. In the OT the Hebrew "shem" is the word name is translated from meaning reputation which in no way refers to the literal ( proper )name of God. Whereas the Greek word "onoma" used in the NT does refer to the proper name of Jesus.
It would be extremely reasonable for God to magnify his LAW above that of His REPUTATION. Do you understand why God says that His people are destroyed for lack of knowledge?
You have quoted 2 verses that indicate that God maginifies His word..and yet you dismiss 18 -30 verses where he speaks of His name.
It is rather like the Mega Charasmatic Church I attended for years where the gifts were more sought and more recognized that the one that gives them. The gifts were used to as a "proof" of a believer spirituality rather than a expression of the God that gave them..
That quote was revelant..we have to be careful to remember the power belongs to the one that speaks the word..not in the word itself
57:15 For thus saith 559-1 the high 7311-6 and lofty 5375-12 One that inhabiteth 7931-6 eternity, 5703 whose name 8034 [is] Holy; 6918 I dwell 7931-4 in the high 4791 and holy 6918 [place], with him also [that is] of a contrite 1793 and humble 8217 spirit, 7307 to revive 2421-53 the spirit 7307 of the humble, 8217 and to revive 2421-53 the heart 3820 of the contrite ones. 1792-12
Strongs says Shem..My Hebrew/English concordance says Sem .I would go with the Hebrew concordance first (which by the ways has pages and pages of Sem...not a handful)