Bhagavad Gita

ಭೀಷ್ಮದ್ರೋಣಪ್ರಮುಖತಃ ಸರ್ವೇಷಾಂ ಚ ಮಹೀಕ್ಷಿತಾಮ್ ।
ಉವಾಚ ಪಾರ್ಥ ಪಶ್ಯೈತಾನ್ ಸಮವೇತಾನ್ ಕುರೂನಿತಿ ॥೨೫॥
bhīṣmadroṇapramukhataḥ sarveṣāṃ ca mahīkṣitām |
uvāca pārtha paśyaitān samavetān kurūniti ||25||

Sloka 1:25
Gist of the sloka:
Right in front of the various seniors like Bheeshmacharya and Dronacharya, Lord Krishna placed the chariot and addressing Arjuna said “Hey Partha, see the assembled Kuru’s”.
Lord Krishna, as per Arjuna’s directions placed the chariot such that Arjuna can directly see the Kuru elders like Bheeshmacharya [Arjuna’s grandfather], Dronacharya [his Teacher].
Krishna draws the attention of Arjuna by invoking his inner sense of belonging to Kuru dynasty and also addresses him as Partha – s/o of Pruthu [Kunti].
This is Krishna’s attempt to start invoking psychotherapy. Lord Krishna is trying to bring out the inner feelings and thoughts of Arjuna in trying to both remove his ego and his sense of attachment.
Arjuna is a kshatriya and as such belonging to ruling class, he is supposed to treat all as per their deeds & actions; rather than coloring them as relatives or nonrelatives.
Lord Krishna was testing his commitment to stand against evil and stand for righteousness. For such should be the real character of a Kshatriya.
Secondly, Krishna was testing him to see his commitment to continue the war [for righteousness] even in case it was his senior relatives opposing him and saw similar kind of people in his own side. All of whom could be hurt in this war.
The name Partha was deliberately invoked to remind Arjuna that his mother ‘Prithu’ was known for her righteousness despite encountering difficulties, all her life. He being her son was expected to emulate her.