The Symbols of the Holy Spirit

The Finger of God.

Luke 11:20 But if I with the finger of God cast out devils, no doubt the kingdom of God is come upon you.

The Holy Spirit is the “finger of God” in the sense that a finger is used to indicate things, and teachers use a “pointer” to teach by focusing on the most important.

The Seal.

1Cor 1:22 For the Jews require a sign, and the Greeks seek after wisdom:

Eph 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, Eph 4:30 And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.

A seal has basically two purposes. One is like branding to mark ownership, and the second purpose is to guarantee quality, or set a degree of authority (make sometihing official). A third use is to “seal something” making it private, personal, or not open to “public consumption”. This third idea alligns itself with the concept of making something holy.

The Earnst or Deposit.

1Cor 1:22 For the Jews require a sign, and the Greeks seek after wisdom:

Eph 1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.

http://www.heraldmag.org/2005/05so_2.htm