Memory is safe ground
Remember those earlier days after you had received the light, when you stood your ground in a great contest in the face of suffering. (Hebrews !0:32)
The Book of Hebrews carries no claims of authorship, but is likely written in the AD 60s. Significantly the content of Hebrews more than just hints that persecution faces its readers. The suffering these new followers of Jesus experienced could be drawing them back to Judaism. Hence the author directs his audience to recall 'their yesterdays'. The author feared they would lose what they had already 'painfully' gained. The readers are complimented for they already withstood in a great contest in the face of suffering. The author seeks to bolster their hearts.
I love the Holy Spirit inspired thought-flow between chapter 10-12.
Chapter 10 is the call to persevere, chapter 11 the powerful witness of those who overcame, and applied in chapter 12 as remember those spiritual super-stars.
But, the Holy Spirit points out:
... you have forgotten that word of encouragement that addresses you as sons. (Hebrews 12:5)
The call to persevere is strong. 'Recall', is counselled - not only what you have been through but the goodness you have already received.
In your struggle against sin, you have not yet resisted to the point of shedding your blood. (Hebrews 12:4)
Acting 'today' on pain, by remembering 'yesterday's' gains, fortifies/heralds 'tomorrow's' victories that your precious faith won't be lost. Memory can hold a mind towards peace, to a safe ground.
What any Christian faithfully holds is truly worth dying for. They are inheriting THE Kingdom that can't be lost.