What does it imply regarding a person’s character ‘when he is not satisfied with his income?’
The Bible says [indicates, reveals] that such a person “loves wealth (money)”.
Please consider the following:
“Whoever loves money never has enough; whoever loves wealth is never satisfied with their income. This too is meaningless.” (Ecclesiastes 5:10)
Emphasis: Please ponder this phrase found in the verse above deeply namely, “whoever loves wealth is never satisfied with their income”.
It correlates perfectly with the attitude of contentment as taught in Holy Scripture; to quote:
“Not that I speak from want, for I have learned to be content in whatever circumstances I am.” (Philippians 4:11)
“But godliness actually is a means of great gain when accompanied by contentment.” (1 Timothy 6:6)
“Without covetousness the behaviour, being content with the things present, for He hath said, ‘No, I will not leave, no, nor forsake thee,'” (Hebrews 13:5)
“for at no time did we come with speech of flattery, (as ye have known,) nor in a pretext for covetousness, (God is witness!)” (1 Thessalonians 2:5)
*Covetousness = “behaviour (action or speech) indicating the love of money”