Ordering Values In A Cell

Data
10 13 15 3 26
10 13 20 35 29
10 13 5 26 2
10 15 27 34 33

Query
Declare @num1 char(5)
Set @num1 = (SELECT ltrim(Substring(ltrim(number2), 8, CHARINDEX(' ', ltrim(number2)))) FROM Num2played)
SELECT @num1 FROM Num2played

Error
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

Any suggestions or fix?

Thank you.
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The data above is in one colum. I would like to rearange the
numbers in order. e.g. from "10 13 15 3 26" to "3 10 13 15 26".