It's All in Who You Know
Most people don't like "the good ol' boys" network. How can it be fair for someone to get promoted or get a raise based not upon their performance but just because the boss knows and likes them?!
It's NOT fair! Advancement by relationship is WAY BETTER than only fair! It's God's way. He gives the ultimate advancement to His really good friends. "You are the only true God. If they KNOW You, and Jesus Christ whom you sent, they will live for ever." (John 17:3, Worldwide English) That's Salvation by Who-You-Know.
Only God's gigantic heart has an out-flow that can over-flood our unworthiness and make heaven an un-earned gift. "This is what the Lord of Heaven’s Armies says: My LOVE for Mount Zion is passionate and strong; I am consumed with passion for Jerusalem!" (Zechariah 8:2, New Living Translation)
Nobody has enough personal merit to deserve eternal life. "No one is made right with God by following the Law. It is TRUSTING in Jesus Christ that makes a person right with God." (Galatians 2:16, Easy-to-Read Version)
"Knowing, loving, trusting," are the Bible's get-salvation words. All three are relationship words. God's great heart passionately loves us. Being in relationship with Him connects us to Him. Knowing Him, trusting Him, loving Him back creates the two-way flow which overwhelms our sin with His grace.
Salvation by Who-You-Know is an Old Testament truth, too. "Unfailing love and faithfulness make atonement for sin." (Proverbs 16:6, New Living Translation) I checked with the scholars. Super-wise Solo-mon is writing about OUR love making atonement for sin. But notice, to lay hold on God's passionate love and keep a grasp on His atoning grace, loving Him back must be continuing, "unfailing," "faithful." That's a God-and-Me relationship. That's Salvation by Who-You-Know.