Ephesians 1:11 says, "In Him also we have obtained an inheritance, being predestined according to the purpose of Him who works all things according to the counsel of His will." This shows us that our salvation was achieved according to the will of God. We believers have become God's possessions. We have put on His grace to become His children according to the counsel of His will.
We have not become God's children under the influence of something other than the righteousness of God, but rather, we become His children all thanks to the righteousness of Jesus by believing in His righteousness according to the Father's desire.
Since we have been saved by His righteousness, this salvation is completely perfect.Our salvation is great and perfect. The God-given grace of salvation is infinitely abundant and knows no bounds.