This can be seen from the things that happen to us in the world. He feels with us our pain, and has provided salvation for us. He is not hard and uncaring, distant and unmoved. Suffering is the result of the evil choices of man and the work of the devil. God has given our moral choices real significance.
Sin causes pain, curse, death and judgment.
But God did not make us to sin. He just administrates the Universe like a giant computer. The truth is, God is love, intervenes in creation all the time, and wants to be a loving Father to us, if we will just let Him. The Bible speaks of God's personal involvement with people. And millions of Christians can testify of God's concrete involvement in their lives, backed up with hard facts.