In Matthew 5, our Lord calls on us to be generous in our behavior with everyone we meet. Be careful of allowing yourself to be led by your natural affinities in your spiritual life. Everyone has natural affinities—everyone likes some people and dislikes others—but we must never let these likes and dislikes rule in our Christian life. If we “walk in the light, as he is in the light” (1 John 1:7), God will give us communion with people for whom we have no affinity.

The example Jesus holds up for us in Matthew 5:48 isn’t of a good person, or even of a good Christian, but of God himself. When Jesus says, “Be perfect, therefore, as your heavenly Father is perfect,” he means that we must show to others what God has shown to us. In our lives, God will give us many opportunities to prove whether we are perfect as he is perfect. He will ask us to deliberately identify ourselves with his interests in other people.

“Love each other as I have loved you” (John 15:12). The expression of Christian character isn’t good-doing; it’s God-likeness. If the Spirit
of God has transformed you on the inside, then on the outside you will display divine characteristics, not human characteristics. God’s life in us expresses itself as God’s life, not as human life trying to be godly. The secret of being Christian is that the supernatural is made natural in us by the grace of God. We experience this in the regular, busy moments of our lives, not in times of quiet communion. When we come into contact with people or circumstances that should throw us off-balance, we find to our amazement that we have the power to keep wonderfully poised in the center of it all.

Wisdom from Oswald

The life of Abraham is an illustration of two things: of unreserved surrender to God, and of God’s complete possession of a child of His for His own highest end.
Not Knowing Whither