ALL SCRIPTURE is addressed to me in some way, shape, form or fashion. I do not understand every verse in the bible, do not have an answer for every verse in the bible, and when confronted with some verse(s) I do not truly understand at that time, I'll tell you I do not know. But that statement of yours here is quite concerning to me.You are taking scripture addressed to the Israelites and applying it to yourself.
"You study the Scriptures diligently because you think that in them you have eternal life. These are the very Scriptures that testify about me."[John 5:39]
What scriptures were Jesus referring to that He said testified of Him? The OT scriptures. They testified just as much to Jesus as the NT does, it is just they testified of Him coming in the flesh whereas the NT testifies to Jesus having already came as a man to die and be resurrected and His imminent return in the Cloud of Glory. But the OT is for ALL believers, not just the Jews.
All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness,"[2 Timothy 3:16]
The OT scriptures are just as vital to the beliver as the NT scriptures are. Please do not fracture the bible into verses for Jews and verses for christians. All scripture is vital to all believers.