Natural strength is what we receive from the hand of God as Creator. Spiritual strength is what we receive from God in grace.

The cross grants us position, the Holy Spirit gives us experience.

It is not only the proclamation of the whole truth that is needed today; it is the release of the spiritual reality which the truth expresses, and that can only be realized as we allow ourselves to be caught into the mighty on-flowing tide of the Spirit.

We must have a spirit of power towards the enemy, a spirit of love towards men, and a spirit of self-control towards ourselves.

Overcoming sin, blessed though it surely is, is but the bare minimum of a believers experience. There is nothing astonishing in it. Not to overcome sin is what ought to astonish us.

Furthermore, through the believer's spirit the Holy Spirit is able to impart God's life to thirsty and dying men. However, this filling of the Holy Spirit differs from the baptism with the Holy Spirit, because the latter is for the purpose of service while the former solves the problem of life (naturally it will affect service too).

Whatever the mind sets itself on is what the man walks after.