Ephesians 3:18-19 KJV
May be able to comprehend with all saints what is the breadth, and length, and depth, and height; And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God.
These scriptures define a love which is not only unconditional, but without limits. If we are to know the unconditional, unlimited love of God, He has to show us that we must love people unconditionally. Only the unconditional love of people can make us aware that God loves us in the same way, unconditionally. If we love people with conditions, we will only be conscious of a conditional love of God towards us. Only when we love others unconditionally, and become aware of the same unconditional love of God for us, can we know God to be limitless towards us. Unconditional is synonymous with limitless. And only when we know God in His limitlessness can we be filled with all His fulness which is limitless. If we love people with conditions we only hurt ourselves because we will only know God in a limited way.