The Finger Of God
The English word "finger" originated from an old Anglo-Saxon (i.e. the part of Germany in and from which the English people originated) that meant to grasp, as by the digits of the hand (numbers came to be called "digits" because people used their fingers to count). Interestingly, the English word "fang" originated from the very same root word as "finger" i.e. things could be grasped with the teeth just as with the fingers - something that humans still sometimes do when they have "their hands full."
The Hebrew word of the Holy Scriptures that is usually translated as "finger" is pronounced ets-bawh. It literally means to grasp, but can be used to refer to either fingers or toes - although in the Scriptures it means finger.
The LORD has "fingers" i.e. the Creation was "the work of Thy fingers" (see the Fact Finder question below).
"8:3 When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 8:4 What is man, that thou art mindful of him? and the son of man, that thou visitest him? 8:5 For thou hast made him a little lower than the angels, and hast crowned him with glory and honour. 8:6 Thou madest him to have dominion over the works of thy hands; thou hast put all things under his feet." (Psalm 8:3-6 KJV)
"This is the finger of God"
As stated above, the "finger" of God is used as an analogy for His Spirit, the Power of Creation and Rule. Surprisingly, it's something that even some of those who do not yet seek to obey Him understand - as in this case when the LORD gave the arrogant Pharaoh His "finger" i.e. "8:19 Then the magicians said unto Pharaoh, This is the finger of God" (see also Plagues Of The Pharaohs: Past and Future).
"8:19 Then the magicians said unto Pharaoh, This is the finger of God: and Pharaoh's heart was hardened, and he hearkened not unto them; as the LORD had said." (Exodus 8:19 KJV)
Humans grasp writing instruments in their fingers. The LORD writes with His Finger alone: "two tables of testimony, tables of stone, written with the finger of God."
"31:18 And he gave unto Moses, when he had made an end of communing with him upon mount Sinai, two tables of testimony, tables of stone, written with the finger of God." (Exodus 31:18 KJV)
"11:14 And he was casting out a devil, and it was dumb. And it came to pass, when the devil was gone out, the dumb spake; and the people wondered.
Fact Finder: Through Whom did God create all things?