As a wise man as he is, he knows what to say and what not to say. Getting the South back into the Union was the biggest and most sensitive issue he had to deal with. Lincoln could had handled it well. Starting by creating a general amnesty that would be granted to all who would take an oath of loyalty to the United States and pledge to obey all federal laws pertaining to slavery. It was easier for the South to comply without creating any violence or tension. Top Confederate officials and military leaders were to be temporarily excluded from the process which will eliminate further tension they'll create if they lead each state against the North politically. Notice how he wants them temporarily excluded which if he was to permanently carried out, Southerners would automatically be mad. As he made that wise move, he would have called another plan in restoring government. The plan called for one-tenth of the number of voters who had participated in the 1860 election had taken the oath within a particular state, then that state could launch a new government and elect representatives to Congress. Such lenient terms already had the states of Louisiana, Arkansas and Tennessee complying,
Regardless whether if Congress opposed his terms, Lincoln would have vetoed or pocket vetoed their terms offered to him. Even if they overwrite them, its likely that Lincoln will go to