“Set your affection on things above, not on things on the earth.” (Colossians 3.)
“. . . the Lord . . . shall stablish you, and keep you from evil.” (II Thessalonians 3.)
“By adhering to the realities of eternal existence . . . one cannot suffer as the result of any labor of love, but grows stronger because of it. ” (SH 387.)
Set, Stablish, Adhering all have to do with permanence and preservation.
Preservation, in the context of “God, the preserver of man”, is a two-way street: “Because [and only ‘because’] he has set his love upon Me … I will set him on high.” (Psalm 91, emphasis added.)
This is also the principle meaning of “covenant”, defined by Webster as “a mutual consent or agreement of two or more persons, to do or to forbear some act or thing; a contract; stipulation. A covenant is created by deed in writing, sealed and executed; or it may be implied in the contract.”
“Because [and only ‘because’] thou hast made the Lord . . . thy habitation, there shall no evil befall thee, neither shall any plague come no his dwelling.” (Psalm 91.)
Mrs. Eddy’s instructions to Judge Hanna (https://articles.plainfieldcs.com/various-authors/judge-hanna/excerpts-from-judge-hannas-memoirs/) explain clearly how to maintain and preserve a set, settled, stablished relationship with God — how to I can fulfill my part of the our covenant with one another, moment by moment; this is how I can reflect God’s unchanging faithfulness back to Him, who is eternally preserving His side of the covenant between Himself and me.
An extreme example of the infinite depth of God’s unchanging “one-way” love for me is found in Hosea’s relationship with Gomer (https://bible.org/seriespage/8-undying-love-story-hosea-and-gomer), but sooner or later, God’s love must be reciprocated — otherwise, no spiritual growth can occur.