This makes sense, because God is the one who created the world [and ourselves], and brought Israel out of Egypt, with all the miraculous wonders of crossing the Red Sea on dry ground while the hostile and unrepentant Pharaoh and his army were drowned in the same sea. The plagues upon Egypt -- which both Egypt and Israel had witnessed -- also bore witness to God's power and work on Israel's behalf. Since we do not know what God looks like, we can't construct an image of Him without it being something 'other' than Him. So while I can certainly understand that it is easier to worship something which one can see or touch, it is not Him, and in the second commandment, we are expressly forbidden to do so.
Needless to say, it follows that God would not want us to pray to saints or any other type of holy person. Some say that it is just that this saint is functioning as an intermediary, a helper, a go-between, for they do not feel worthy to just go directly to God themselves. This sounds humble, but is wrong on several counts:
- First, there is no class of persons who are 'more godly' than any other. The Scriptures are clear that "all have sinned and fall short of the glory of God" (Romans 3:23) and that "There is not a righteous man on earth who does what is right and never sins" (Ecclesiastes 7:20). We can't get the kind of help we need from a fellow sinner.
- No one besides Jesus can function as an intermediary between God and man. It is true that because we have all sinned, we are separated from God and need an intermediary. However, it has to be the One who God has chosen: "For there is one God and one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all men..." (I Timothy 2:5-6) Once we accept the salvation which Jesus Christ purchased for us by his blood, we are forgiven and then can go directly to God with our own requests.
- Besides, for such 'saints' to hear our prayers or requests, they themselves would have to have the God-like qualities of omnipresence [being present everywhere at once] in order to hear our requests and also of omnipotence [having all power] in order to do something about our requests. No person [even holy people] have such qualities, so we either have to stop calling out to them as though they can help us, or else admit that we are worshiping them as a 'god'.
- Some additional information: All believers are called 'saints' in the Scriptures. Here are some scriptures which use the term in 'saints' in this way: I Samuel 2:9, Psalm 16:3; 30:4; 31:23; 34:9; 116:15; 149:1; Daniel 7:18; Romans 8:27; I Corinthians 6:2; Ephesians 1:15; 1:18; 6:18; Philemon v.7; Revelation 5:8; and Revelation19:8. Those are not all of the places where the term 'saints' is used this way, either, but you get the idea!