GrievancesThe Federal government under Lincoln denied slaveholders the right to settle in the territories which reached to the Pacific Ocean, and the Texans also pointed to the conflict that had resulted in Kansas. The Texans also said that the Federal government had failed to protect them from the Indians and Mexicans on the border and instead the state government had to spend its money to defend themselves.
SlaveryThey sighted many grievances related to slavery. They protested against the North's ignoring the fugitive slave law, and their campaign to overthrow their institutions. The following is an excerpt from the Texas declaration of secession (actual title, if so capitalize and italicize):
For years past this abolition organization has been actively sowing the seeds of discord through the Union, and has rendered the federal congress the arena for spreading firebrands and hatred between the slave-holding and non-slave-holding States.One of the problems with this document is that they did not believe that the African race was equal to the whites. I would disagree with this, and you can read more about this in my post on slavery.
By consolidating their strength, they hare placed the slave-holding States in a hopeless minority in the federal congress, and rendered representation of no avail in protecting Southern rights against their exactions and encroachments. ...
And, finally, by the combined sectional vote of the seventeen non-slave-holding States, they have elected as president and vice-president of the whole confederacy two men whose chief claims to such high positions are their approval of these long continued wrongs, and their pledges to continue them to the final consummation of these schemes for the ruin of the slave-holding States.
SecessionAfter Texas left the Union there was a gap in secession. No more states seceded for several months. You can read more about that here.
The Coming WarSamuel Houston refused to take the an oath to join the Confederacy and therefore resigned as governor. In a speech he said this:
Let me tell you what is coming. After the sacrifice of countless millions of treasure and hundreds of thousands of lives, you may win Southern independence if God be not against you, but I doubt it. I tell you that, while I believe with you in the doctrine of states rights, the North is determined to preserve this Union. They are not a fiery, impulsive people as you are, for they live in colder climates. But when they begin to move in a given direction, they move with the steady momentum and perseverance of a mighty avalanche; and what I fear is, they will overwhelm the South