I don't normally argue the 'finer' points of the bible because I'm an atheist; god doesn't exist, therefore the bible is simply a poorly written book from the Iron Ages. Its only value to me is perhaps a bit of history, but it isn't even very good with that, because it's been translated and copied so many times.
That being said, I do have a couple of bibles. Mainly I use the Skeptic's Annotated Bible when I need one now, though. The thing about being a skeptic/atheist, you have to know more than the "true believer".
Here are 50 inconsistencies in the old testament that you can keep in your back pocket for arguments.
- Man was created equal, male and female. Gen.1:27.
Woman was created as a companion to the man only after he rejected the animals. Gen.2:18-24.
- Man was created after the plants. Gen.1:12, 26.
Man was created before the plants. Gen.2:5-9.
- The birds were created out of the water. Gen.1:20.
The birds were created out of the land. Gen.2:19.
- The animals were created before man. Gen.1:24-26.
The animals were created after man. Gen.2:19.
- On the first day, God created and separated light and darkness. Gen.1:3-5.
On the fourth day, God again created and separated light and darkness. Gen.1:14-18.
- God encouraged reproduction. Gen.1:28.
He said it was an unclean process. Lev.12:1-8 (Note that bearing a daughter is more unclean than bearing a son).
- God was pleased with his creation. Gen.1:31.
God was not pleased with his creation. Gen.6:6.
- Adam was to die the day he ate the forbidden fruit. Gen.2:17.
Adam lived 930 years. Gen.5:5.
- The name of "The Lord" was known in the beginning. Gen.4:26; Gen.12:8; Gen.22:14; Gen.26:25.
The name of "The Lord" was not known in the beginning. Ex.6:3.
- God preferred Abel's offering to Cain's. Gen.4:4, 5.
God shows no partiality. 2 Chr.19:7; 2 Sam.14:14.
- God asks Cain the whereabouts of his brother. Gen.4:9.
God goes to see what is happening. Gen.18:20, 21.
God is everywhere and sees everything. Prov.15:3; Jer.16:17; Jer.23:24.
- It rained on the earth. Gen.7:4.
There was rain from above and below. Gen.8:2.
- Two pairs of each kind were to be taken aboard Noah's ark. Gen.6:19, 20; Gen.7:9, 14-16.
Two pairs and seven pairs of some kinds were to be taken aboard. Gen.7:2, 3.
- Noah entered the ark during the Flood. Gen.7:7.
Noah entered the ark after the Flood. Gen.7:12, 13.
- There were many languages before the tower at Babel. Gen.10:5, 20, 31.
There was only one language before the tower at Babel. Gen.11:1.
- Abraham married his half-sister and was blessed. Gen.11:29; Gen.17:15,16; Gen.20:11,12.
Incest is wrong. Deut.27:22; Lev. 18:9; Lev. 20:17.
- God renamed Jacob and called him Israel. Gen.35:10.
God forgot the new name. Gen.46:2.
- Dan had one son. Gen.46:23.
Amazingly, this one son produced over 62,000 military-age males by the first census. Num.1:38,39.
- All the beasts died in plague number six. Ex.9:6.
All the beasts received boils in plague number seven. Ex.9:10.
All the beasts were hit with hail and fire in plague number eight. Ex.9:25.
All the beasts lost their firstborn in plague number ten. Ex.12:29.
- All the plant life was destroyed by hail. Ex.9:25.
All the plant life was destroyed by locusts. Ex.10:15.
- God instructs the Israelites to spoil the Egyptians and plunder their enemies. Ex.3:22; Deut.20:13-17.
God prohibits stealing or defrauding a neighbor. Lev.19:11,13.
- Moses was great. Ex.11:3.
Moses was meek. Numbers 12:3.
- Moses was the only allowed near God. Ex.24:2.
Moses was not the only one allowed. Ex.24:9-11.
- Moses condemned the making of an idol. Ex.32:19, 20.
Moses made an idol. Num.21:9; 2 Ki.18:4.
- The commandments were memorably given at the beginning of the wilderness trek. Ex. 19 and 20.
The people appeared not to remember later in the wilderness. Lev.24:12; Num.15:34.
- Moses told the people they would pass over the Jordan that day. Deut.9:1.
It was Joshua who took them over much later. Josh.1:1, 2.
- The number of Israelites, excluding children, was 600,000. Ex.12:37.
The number of Israelites, including children, was only 7000. 1 Ki.20:15.
- Manna tasted like coriander seed and honey. Ex.16:31.
Manna tasted like fresh oil. Num.11:8.
- The Sabbath Day was to remember creation. Ex.20:11; Ex. 31:17.
The Sabbath Day was to remember the sojourn in Egypt. Deut.5:15.
- God details sacrificial offerings. Ex.20:24; Ex.29:10-42; Lev.1:1-17; Num.28:1-31.
God says he did not order sacrifices. Jer.7:22
- The Israelites were a numerous and mighty people. Ex.1:8, 9.
The Israelites were few in number. Deut.7:7.
- The Israelites had plenty of water to wash their clothes for purification. Ex.19:10.
The Israelites had no water and rioted for a drink. Ex.15:22-24.
- God was with the people. Ex.3:12.
God was not with the people. Ex.33:
- Samuel ministered to the "Lord". 1 Sam.3:1.
Samuel did not know the "Lord". 1 Sam.3:7.
- David killed Goliath. 1 Sam.17:49,50.
Elhanan killed Goliath. 2 Sam.21:19-21. (Notice that the phrase "the brother of" has been added).
- "God" caused David to number the people. 2 Sam.24:1.
"Satan" caused David to number the people. 1 Chr.21:1.
- God chose Saul. 1 Sam.9:16.
God repents for choosing Saul. 1 Sam.15:35.
God doesn't need to repent. Num. 23:19.
- Saul inquired of God but received no answer. 1 Sam.28:6.
Saul died for not inquiring. 1 Chr.10:13, 14.
- Saul killed himself. 1 Sam.31:4; 1 Chr. 10:4, 5.
Someone killed Saul. 2 Sam.1:5-10.
The Philistines killed Saul. 2 Sam.21:12.
God killed Saul. 1 Chr.10:13,14.
- God prohibits the making of idols. Ex.20:4; Deut.5:8, 9.
God commands idols to be made. Ex.25:18; Num.21:8, 9.
- Children are to suffer for their parent's sins. Ex.20:5; Ex.34:7; Num.14:18; Deut.5:9; Is.14:21.
Children are not to suffer for their parent's sins. Deut.24:16; Ezek.18:19,20.
- God prohibits the killing of the innocent. Ex.23:7.
God approves the killing of the innocent. Num.31:17; Josh.6:21; Josh.7:24-26; Josh.8:22-25; Josh.10:20, 40; Josh.11:15; 1 Sam.15:3.
- God inflicts sickness. Num.11:33; 2 Chr.21:14, 15.
Satan inflicts sickness. Job 2:7.
- Death to a false prophet. Deut.18:20.
Death also to a real prophet deceived by "God". Ezek.14:9.
- God remembers sin even when it has been forgiven. Ex.34:7.
God does not remember sin after it has been forgiven. Jer.31:34.
- God promised the land to the people. Ex.12:25.
God broke his promise. Num.14:30, 31.
- God sows discord. Gen.11:7-9.
God hates those who cause discord. Prov.6:16-19.
- God is near to all who call on him. Ps.145:18.
God is far away and cannot be found in times of need. Ps.10:1.
- God sometimes forsakes his children. Ps.22:1, 2.
God is always a present help. Ps.46:1.
- The righteous shall rejoice when he sees vengeance. Ps.58:10, 11.
Do not rejoice when your enemy falls or stumbles. Prov.24:17.
Found Here, thanks. And here's a link to contradictions in the bible at the Skeptic's Annotated Bible.