The Descending Dove or Divine Dove Symbol

       The Holy Ghost, the dove appears in most of the early representations of scenes in Christ's life-- most frequently, perhaps, in pictures of his baptism, literally rendering the words from the Gospel of John "I saw the Spirit descending from heaven like a dove." Chapter 1:32

This Divine Dove, in a radiating aureole is from a French Miniature.

  

Dove typifying grace of the Holy Spirit descending upon Christ
in his baptism. (From a painting, "Baptism of Verrocchio," in
 Florence.)

Scriptural Reference for The Descending Dove Chrismon:

• "As soon as Jesus was baptized, he went up out of the water. At that moment heaven was opened, and he saw the Spirit of God descending like a dove and alighting on him." Matthew 3:16 (NIV)
• "For we were all baptized by one Spirit so as to form one body--whether Jews or Gentiles, slave or free--and we were all given the one Spirit to drink. "1 Corinthians 12:13 (NIV)
• "What are you waiting for? Get up and be baptized. Have your sins washed away by calling on the name of the Lord.' Acts 22:16 (NLT)
• "For as many of you as were baptized into Christ have put on Christ."  Galatians 3:27 (ESV)

Combined Triangle, Trinitarian, Dove Symbol - Many Trefoils

This trefoil shape also includes a descending dove; a reference to Christ's Baptism.

       Trefoil (from Latin trifolium, "three-leaved plant", French trèfle, Italian trifoglio, German Dreiblatt and Dreiblattbogen, Dutch klaver, "clover", same as clubs) is a graphic form composed of the outline of three overlapping rings used in architecture and Christian symbolism. The term is also applied to other symbols of three-fold shape.

       Trefoil is a term in Gothic architecture given to the ornamental
foliation or cusping introduced in the heads of window lights,  tracery,
 panellings, etc., in which the center takes the form of a three-lobed leaf
(formed from three partially overlapping circles). One of the earliest
examples is in the plate tracery at Winchester (1222–1235). The fourfold
 version of an architectural trefoil is a quatrefoil.

       A simple trefoil shape in itself can be symbolic of the Trinity,
 while a trefoil combined with an equilateral triangle was also
 a moderately common symbol of the Christian Trinity
during the late Middle Ages in some parts of Europe.

Scripture Reference for The Trinity Symbol With Dove:

• "But the Helper, the Holy Spirit, whom the Father will send in my name, he will teach you all things and bring to your remembrance all that I have said to you."John 14:26 (ESV)
• "Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid." John 14:27 (NIV)
  

Above and below, more Trefoil Triangle verions.

Dove With An Olive Branch Chrismon

 
       Tertullian (c.160 - c.220) compared Noah's dove in the Hebrew Bible, who "announced to the world the assuagement of divine wrath, when she had been sent out of the ark and returned with the olive branch". with the Holy Spirit in baptism "bringing us the peace of God, sent out from the heavens". In his 4th century Latin translation of the story of Noah, St Jerome rendered "leaf of olive" (Hebrew alay zayit) in Genesis 8:11 as "branch of olive" (Latin ramum olivae). In the 5th century, by which time a dove with an olive branch had become established as a Christian symbol of peace, St Augustine wrote in On Christian Doctrine that, "perpetual peace is indicated by the olive branch (oleae ramusculo) which the dove brought with it when it returned to the ark." However, in Jewish tradition there is no reference to an olive branch in the story of the Flood and no association of the olive leaf with peace.

Scripture References for The Dove of Peace:

• "And the dove came to him at eventide; and behold, in her beak was an olive-leaf plucked off; and Noah knew that the waters had become low on the earth." Genesis 8:11 (DBT)