In harmony with the context, we can safely interpret this as meaning that although Jesus was perfect, he had a totally God-like mind, yet he was willing to take on the demeanour of a servant.
Kwa mapatano na maneno yenyewe, tunaweza kwa usalama kufasiri huu kuwa na maana ya kuwa ingawa Yesu alikuwa mkamilifu alikuwa na nia kama ya Mungu kabisa, lakini akapenda kutwaa mwenendo wa mtumwa.